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Posts Tagged ‘Occoquan Bay National Wildlife Refuge’

Damselflies in the genus Argia are known by the rather whimsical name of dancers, because of the distinctive jerky form of flight they use, in contrast to the straightforward direct flight of bluets, forktails, and other pond damselflies. This past Monday I was delighted to spot this male Blue-fronted Dancer damselfly (Argia apicalis) while I was exploring at Occoquan Bay National Wildlife Refuge.

I have seen this species at other locations, but I think that this is the first time that I have spotted one at this refuge. Normally I have trouble identifying damselflies, because so many of them are similar in appearance, with multiple variations of black and blue. Blue-fronted Dancers, however, are quite distinctive because their thoraxes are almost completely blue, with only hairline black stripes on the shoulders and the middle of the back.

I like the way that the stems of the plants are arrayed in a linear, almost geometric pattern that adds visual interest to the background without distracting too much attention from the primary subject. The bright pops of blue on the damselfly really help to make it stand out from the primarily green background.

Blue-fronted Dancer

© Michael Q. Powell. All rights reserved.

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It is almost autumn, late in the season for most dragonflies. For many of them, their bright colors have faded and their wings are growing increasingly tattered. Yet somehow their beauty still shines through in their mature days.

With dragonflies, as with people, I am often drawn to their eyes, the so-called “window to the soul.” Dragonflies have such striking eyes and I invariably feel myself being pulled in as I gaze into them.

This past Monday I photographed several female Great Blue Skimmer dragonflies (Libellula vibrans) as I wandered the trails at Occoquan Bay National Wildlife Refuge. In both of the photos below, the beauty of the dragonfly’s eyes really shows through. I encourage you to click on the images and you too can marvel at the wonderful colors and patterns of those eyes.

Our society tend to focus on youthful external beauty, which will inevitably fade. True beauty, I would argue, is not dependent on age—it depends more on the perspective of the beholder. If you look for beauty, you will find it for it is present all around us—beauty is everywhere.

Great Blue Skimmer

Great Blue Skimmer

© Michael Q. Powell. All rights reserved.

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When I first saw this bird on Monday at Occoquan Bay National Wildlife Refuge, I thought it was a type of gull. However, its flying pattern—it repeatedly flew low above the water— suggested to me that it was some other kind of bird. When I looked at my photos afterwards and checked my bird identification book, I concluded that it was most likely some kind of tern.

When I posted an image to a birding forum in Facebook, one of the experts there informed me that it was a Caspian Tern (Hydroprogne caspia), a bird that I had never before seen. He pointed out “the heavy red bill, extensive black on the underside of the primaries, short tail, and full black cap” that indicated that this was a Caspian Tern and not the somewhat similar-looking Royal Tern.

As the summer begins to wind down, I will gradually shift my attention from insects to birds as my primary subjects. In the meantime, I will still be focused a lot on my beloved dragonflies and butterflies, with an occasional tern (or re-tern) to the birds.  🙂

Caspian Tern

Caspian Tern

Caspian Tern

© Michael Q. Powell. All rights reserved.

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The sunlight was a bit harsh, but I actually like the way that it turned the background white, drawing even greater attention to the beautiful Viceroy butterfly (Limenitis archippus) that I spotted last week at Occoquan Bay National Wildlife Refuge.

Every now and then I will take a shot, like this one, that turns out more “artsy” and stylized than my “normal” shots. It’s hard to explain, but this simple photo really appeals to me.

Viceroy

© Michael Q. Powell. All rights reserved.

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Throughout most of the summer I have seen very few large butterflies. Recently, though, I have been seeing them in greater numbers. I do not know if this is somehow linked to the blooming of the thistle plants, but I have spotted numerous butterflies in patches of this plant during recent visits to Occoquan Bay National Wildlife Refuge.

Last week I spotted this beautiful Eastern Tiger Swallowtail butterfly (Papilio glaucus) high atop a plant and I captured the first image with the sky in the background. The second image is linked to a short video I captured yesterday of a Monarch butterfly (Danaus plexippus). Most of the time I tend to associate Monarchs with milkweed, but this one sure seemed to be enjoying the thistle flower. Before long, it should begin its migration and perhaps this was part of the fueling process.

I am still experimenting with taking short videos with my iPhone and once again posted the video to YouTube. I have started a little channel on YouTube and have already posted a number of short clips, primarily of butterflies, bison, and butterflies, some of them with music tracks as accompaniment—I inserted some copyright free piano music, for example, in the Monarch video below. I have also experimented with some slightly longer compilations of clips with voiceover narration. Check out my channel Mike Powell if you are at all curious to see and hear what I have done so far.

Eastern Tiger Swallowtail

© Michael Q. Powell. All rights reserved.

 

 

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I was delighted to spot this beautiful female Calico Pennant dragonfly (Celithemis elisa) last Tuesday at Occoquan Bay National Wildlife Refuge. She was perched high in the vegetation and tolerated my presence pretty well, which permitted me to get shots from several angles. I love the way that the feet and the wings are in slightly different positions in each shot, as she adjusted her position to maintain her balance.

Calico Pennant

Calico Pennant

Calico Pennant

© Michael Q. Powell. All rights reserved.

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You can’t get much more basic than this shot of a Blue Dasher (Pachydiplax longipennis), one of the most common dragonflies where I live, that I spotted last Tuesday at Occoquan Bay National Wildlife Refuge.. I find, though, that there is a really beauty in that simplicity that allows me to immerse myself in the details of my subject.

I am able to notice the two-toned eyes, the pattern on the abdomen, and the yellowish portions of the legs where they are connected to the body. Even the perch, which I think is stalk of Eastern Gamagrass (Tripsacum dactyloides), has fascinating details.

Beauty is everywhere.

Blue Dasher

© Michael Q. Powell. All rights reserved.

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Black Saddlebags dragonflies (Tramea lacerata) are one of a dozen or so dragonfly species in North America that migrate. Not surprisingly they are strong fliers and most of the time when I see one, it is flying high overhead—they do not seem to perch very often.The dark patches on their hind wings, which someone thought resembled saddlebags, are so distinctive that it is pretty easy to identify a Black Saddlebags when I see one in the sky.

As I was exploring Occoquan Bay National Wildlife Refuge on Tuesday, I spotted a dragonfly as it zoomed by me and watched it land low in the vegetation. I moved forward as stealthily as I could and was delighted to see that the perching dragonfly was a Black Saddlebags. The background was quite cluttered, but I managed to find a clear visual path to the dragonfly and was delighted to capture this detailed image—I encourage you to click on the photo to see the beautiful markings on the abdomen and the distinctive “saddlebags.”

If you want to learn more about this particular species, I recommend an article from the University of Wisconsin at Milwaukee entitled “Black Saddlebags Dragonfly (Family Libellulidae).” Among other things, you will learn that for Black Saddlebags dragonflies, “Mating is brief if done aerially [the ultimate multitasking] and only slightly longer if the pair is perched.”

Black Saddlebags

© Michael Q. Powell. All rights reserved.

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As I approached a patch of thistle in bloom on Tuesday, I was looking carefully to see if there were any butterflies feeding on the flowers. Suddenly I noticed a flash of bright red and realized immediately that it was a Hummingbird Clearwing Moth (Hemaris thysbe).

Hummingbird Clearwing moths, which actually do resemble hummingbirds as they dart among the flowers, hovering periodically to such nectar, are not exactly rare where I live, but I tend to see them only a few times a year. Fortunately I reacted quickly enough to capture this image, because the moth flew out of sight after it had finished feeding on this flower.

For shots like this, the wing position is really important and I was thrilled that I was able to capture the wings fully extended, which highlights the transparent portions of the wing responsible the common name of this species. The details of the moth and the thistle are pretty sharp and the background is blurred enough that it is not a distraction—I like this shot a lot.

Hummingbird Clearwing Moth

© Michael Q. Powell. All rights reserved.

 

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I am still learning to take videos with my iPhone 11. During my recent road trip, I convinced myself that it could be used with large subjects like bison and wild horses. I wasn’t sure, however, if it could be used effectively with the small subjects that I enjoy photographing.

Yesterday I visited Occoquan Bay National Wildlife Refuge, my favorite local wildlife photography spot, and kept my iPhone in my front pants pocket—normally I keep it in my backpack, which it is much less accessible. I was still using my Canon 7D with the Tamron 18-400mm zoom lens most of the time, but I made a conscious effort to look for subjects that I could also film with my iPhone.

I was astonished when I encountered a relatively cooperative Zebra Swallowtail butterfly (Eurytides marcellus). Normally these butterflies are extremely skittish and it is a challenge to get a photo of one, even with a long telephoto lens. How could I make a video of one when I would have to be really close to it?

The first video, which is hosted in YouTube, is a short clip I was able to capture of a Zebra Swallowtail. I added a piano track as accompaniment to enhance the experience.

The second video features an Eastern Tiger Swallowtail butterfly (Papilio glaucus) feeding on a colorful thistle plant. This video was a bit easier to capture, because the butterfly was perched much higher and was really preoccupied. I was therefore able to frame the video much better. Once again I added piano music to the video, using the copyright free music available in the YouTube Studio.

As I mentioned in a previous posting, I have chosen to embed YouTube links to the videos rather than place them directly in my blog, where they would count against the blog’s data limits. In order to have an image appear for this posting in the Reader section of WordPress, I have reprised an image of a Zebra Swallowtail that was in a May 2022 posting.

I am having fun playing with videos and think they give a slightly different perspective to my normal blog postings.  What do you think? Do you enjoy these kinds of short video clips?

Zebra Swallowtail

© Michael Q. Powell. All rights reserved.

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Today I am featuring the Blue Dasher dragonfly (Pachydiplax longipennis), one of the most common dragonflies in my area. The Blue Dasher is special to me because my very first posting on this blog in July 2012 included a shot of a Blue Dasher. Click on this link if you are curious to see what my photography looked like ten years ago.

I took these shots at two different locations in July, prior to my road trip, and am only now catching up on some of my backlog of shots. Blue Dashers seem to be quite adaptable and can be found in a wide variety of habitats, so it is not hard to find one.

These images show Blue Dashers in a variety of poses, including the “obelisk” pose in the final image, one of the signature poses of this species.

Blue Dasher

Blue Dasher

Blue Dasher

© Michael Q. Powell. All rights reserved.

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Most of the dragonflies that I spotted during my most recent visit to Occoquan Bay National Wildlife Refuge were common species that I have been seeing for months. Some photographers are driven to search for rare and exotic species and ignore the everyday ones. I am usually content with trying to capture the beauty of the ordinary ones.

In the first photo, I love the ways that the shadows of the wings of this female Common Whitetail dragonfly (Plathemis lydia) create the optical illusion that the dragonfly has extra wings. In the second photo, the female Blue Dasher dragonfly (Pachydiplax longipennis) is quite beautiful herself and the stunning background enhances that beauty.

The final photo shows a pair of Eastern Amberwing dragonflies (Perithemis tenera), the smallest dragonflies in our area. I love the way that the two dragonflies are reflected in the water.

Beauty can be found in the rare and exotic species, but I think that these images demonstrate that beauty can also be found in ordinary things. When we slow down and look closely, we discover that beauty is everywhere.

Common Whitetail

Blue Dasher

Eastern Amberwing

© Michael Q. Powell. All rights reserved.

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I was hoping on Tuesday that this male Common Green Darner dragonfly (Anax junius) at Occoquan Bay National Wildlife Refuge would land, but his stamina was impressive and I had to content myself with a couple of shots as he zoomed by overhead.

I missed focus on most of my shot attempts, but the first shot below turned out pretty well—I encourage you to click on the image to see some of the beautiful colors and details of this dragonfly.

Tracking the dragonfly visually and keeping it in the viewfinder is a real challenge. I was intrigued to see that my camera more or less held onto focus in the second shot, despite the fact that the dragonfly had flown closer to the foliage.

Common Green Darner

Common Green Darner

© Michael Q. Powell. All rights reserved.

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On Tuesday I was happy to see that there are still lots of dragonflies at Occoquan Bay National Wildlife Refuge. We still have at least several months before the dragonfly season will be over, but already I am noticing some changes in dragonfly demographics. Some of the dragonflies that I saw in great numbers in July, like Needham’s Skimmers for example, are now much less common.

When I visited the small pond at the refuge, I was delighted to spot some Calico Pennant dragonflies (Celithemis elisa), among the most colorful and prominently marked dragonflies in our area. The first two images show mature male Calico Pennants and highlight really well their wonderful wing markings and the beautiful red patterns on their abdomens.

Female and immature male Calico Pennants have yellow and black markings on their bodies, so when I first saw the dragonfly in the third image, I assumed it was a Calico Pennant. When I looked more closely at the image on my computer screen, however, I realized that the markings on the front wings of this dragonfly are shaped more like bands than spots. This means that the dragonfly is most likely a Halloween Pennant dragonfly (Celithemis eponina).

Pennant dragonflies, including the Calico and Halloween Pennants, love to perch at the very tip of vegetation. When even the slightest wind begins to blow, the dragonflies flap about, like pennants, especially when the vegetation is as flimsy as the one in the final photo.

Calico Pennant

 

Calico Pennant

Halloween Pennant

© Michael Q. Powell. All rights reserved.

 

 

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Tuesday was a wonderful day for butterflies at Occoquan Bay National Wildlife Refuge and I was delighted to see lots of them, including the three orange varieties that I am featuring today. First up is a pretty Monarch butterfly (Danaus plexippus). Although its wings show some damage, it was happily feeding on some milkweed. Recent reports have shown that Monarchs are endangered, so it is always exciting to spot one.

The next photo shows a Viceroy butterfly (Limenitis archippus), which is visually quite similar to the Monarch. As I have noted before, the biggest distinguishing feature to tell the two species apart is the line on the hind wing of the Viceroys that Monarchs do not have.

The final orange butterfly is the much smaller Pearl Crescent butterfly (Phyciodes tharos). I see Pearl Crescent butterflies much more often than its larger counterparts, but they are usually quite skittish and perch so close to the ground that it is a challenge to photograph them.

Many of you know that I really like the color orange. I frequently wear a pair of orange Converse All-star sneakers and drive the orange KIA Soul that made a guest appearance in a recent blog post. For me, the color is warm and comfortable. Although it is often associated with the autumn, orange is very much a summer color too, as you can easily see in these butterfly photos.

Monarch

Viceroy

Pearl Crescent

© Michael Q. Powell. All rights reserved.

 

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Yesterday I visited Occoquan Bay National Wildlife Refuge, my favorite local venue for wildlife photography, for the first time in almost a month. It was a beautiful summer day for a walk in nature, with temperatures and humidity lower than usual for this area. I was thrilled to be able to capture a few modest images of birds, which is a bit unusual for me during the summer, when most of the time I am more likely to hear birds hidden in the foliage than actually see them.

The first image shows a rather fluffy-looking Gray Catbird (Dumetella carolinensis). This is probably my favorite shot of the day, because the pose is more dynamic than most perched bird images. The little catbird seems to have a lot of personality and energy.

I was delighted to photograph a Bald Eagle (Haliaeetus leucocephalus) perched above the large eagle nest at the refuge. I composed the second shot to include some of the clouds that, in my view, add some visual interest to otherwise solid blue sky background. No matter how many times I see a Bald Eagle, it is always special for me.

The final image is a long distance shot of a Ruby-throated Hummingbird (Archilochus colubris). When I first spotted the hummingbird, I thought it was a butterfly as it flitted about among the flowers. When it finally registered on my brain that it was a hummingbird, I clicked off a series of shots, without much hope of getting a usable image. I was pleasantly surprised when several of the shots had the hummingbird relatively in focus. I selected this particular image because it shows the hummingbird hovering and because its wing positions reminded me of a butterfly.

It was exciting this month to be on the road, seeing different parts of the country and photographing some different subjects, but it was comforting to return to the familiar confines of a location that is a refuge for me in all senses of the word—it felt like I had returned home.

Gray Catbird

Bald Eagle

Ruby-throated Hummingbird

© Michael Q. Powell. All rights reserved.

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I have not seen very many Monarch butterflies (Danaus plexippus) this summer, though I did spot a similar-looking Viceroy butterfly (Limenitis archippus) on Tuesday at Occoquan Bay National Wildlife Refuge. Monarchs were in the news last week. According to the Smithsonian Magazine, “The International Union for Conservation of Nature (IUCN), a Switzerland-based conservation organization that monitors the status of wildlife, added migratory monarchs (Danaus plexippus plexippus) to its list of threatened species this week.”

I decided to include an image of a Monarch that I captured earlier this month as it was feeding on a cone flower. I thought I would have more chances to photograph more monarchs, but this one was the only one that I have seen in July.

How do you tell the two species apart? The main visual difference between the two species is the black line across the Viceroy’s hind wings, which Monarch butterflies do not have. Both are stunningly beautiful.

Viceroy butterfly

Monarch butterfly

© Michael Q. Powell. All rights reserved.

 

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I was delighted to encounter this group of butterflies last Tuesday at Occoquan Bay National Wildlife Refuge. Several Zebra Swallowtails (Eurytides marcellus) and one prominent Spicebush Swallowtail (Papilio troilus) were poking among the rocks, drinking in salts and other nutrients. If you look carefully at the image, you will see that one of the Zebra Swallowtails (the one to the right of the Spicebush Swallowtail flying—apparently it wanted to join the party.

Did you know that one of the collective nouns for a group of butterflies is “kaleidoscope?” I think the word is a a perfect descriptor for these multi-colored swirling beauties.

kaleidoscope of butterflies

© Michael Q. Powell. All rights reserved.

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Some crows were harassing an osprey (Pandion haliaetus) on Tuesday at Occoquan Bay National Wildlife Refuge. The osprey kept looking to the sky and crying out. Was it yelling at the crows or perhaps calling out to its mate?

Eventually one of the crows flew up onto the same branch as the osprey and continued to pester the larger bird. When I captured the final image, the crow looked away with a look of feigned innocence. The osprey, however, was not buying the act and appeared to be looking over its shoulder, keeping an eye on the crow.

Have a wonderful weekend.

Osprey

Osprey

Osprey

© Michael Q. Powell. All rights reserved.

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I try to pay a lot of attention to the background when I am composing a photo. If it is too cluttered, the background can draw attention from the primary subject, but if it is too plain, it can remove all sense of the environment in which the shot was taken. Ideally, the background adds visual interest to an image without being distracting.

For most of my wildlife shots, I have only a very limited control over my physical environment. Birds and insects will choose their perches or their flight paths and I am the one who has to adapt. It is amazing, though, how a slight change in the angle of view can improve an image. Sometimes I am able to improve my shot by moving a little to one side or the other or by shooting a little higher or a little lower.

Camera settings can help a bit too—by making the depth of field more shallow, for example, I can blur out the background. I have to be careful, however, in using this technique, because important parts of my subject to be blurred as well if I do not pay attention to my relationship to my subject. There are a lot of creative choices to make in choosing camera settings. I remember feeling overwhelmed by the number of choices when I first started becoming more intentional in my photography—it is now second nature and I make my choices instinctively, knowing pretty well what the effect will be of changing a setting.

In the first photo, I tried to be sure that the plane of my camera sensor was parallel to the body of the male Slaty Skimmer dragonfly (Libellula incesta), which meant that most of the dragonfly was in focus, while the background was blurry. You can certainly tell that there were branches all around, but the blurry branches, I think, make this image a whole lot more interesting than the traditional “dragonfly on a stick” shot.

The second image shows a Big Bluet damselfly (Enallagma durum) perched on some vegetation. I really like this shot because of the way that the background gradually fades away, unlike in the first image in which there was a sharp distinction between the foreground and the background. I also like the linear nature of the stalks of vegetation and their varying angles.

I took both of these shots using my Tamron 18-400mm lens during a visit to Occoquan Bay National Wildlife Refuge last week. As I mentioned in some other recent posts, I am experimenting with this lens to see if it can serve as an all-in-one lens for those times when I want to travel light, while retaining the capability to photograph a variety of subjects. These two shots proved to me that with this lens I can capture images of some small creatures with a good amount of detail. So far I am quite happy with its performance and I will continue playing around with it to learn about its capabilities and limitations.

Slaty Skimmer

Big Bluet

© Michael Q. Powell. All rights reserved.

 

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Every now and then one of my readers will ask me to post photos of Occoquan Bay National Wildlife Refuge, my favorite local wildlife photography spot. Usually I have either a telephoto or macro lens on my camera, neither of which is all that suitable for landscape-type shots. If I thought about it, I could switch to a wider lens and generally have one with me in my backpack, but it is kind of a hassle to do so.

This past week I have been finally shooting with my Tamron 18-400mm zoom lens, which I bought months and months ago, but had rarely used. This lens gives me good all-round capability in terms of focal length, but I wasn’t sure how it would handle the kinds of shots that I like to take. Could it handle macro-style shots of dragonflies? How would it handle birds, especially birds in flight?

I am still working on the answering those questions, but so far the results look promising. The dragonfly photos in my past two postings were taken with this lens, as were the landscape photos in this posting. One of the challenges of using this kind of all-in-one lens is that I have to retrain my eyes to look everywhere—when I have a long telephoto lens on my camera, I look mostly into the distance and when I use a macro lens, I look mostly at areas that are close to me.

As you can see in these photos, water is one of the features of this wildlife refuge. Sometimes I search for subjects near the ponds and streams and at other times I focus my attention on the wider waters of the bay. At this time of the year, the vegetation is green and lush. Fortunately the foliage on the trees provides some respite from the oppressive heat that is common here in the summers.

Occoquan Bay National Wildlife Refuge

Occoquan Bay National Wildlife Refuge

Occoquan Bay National Wildlife Refuge

© Michael Q. Powell. All rights reserved.

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We are at a time of the summer, when it is unlikely that I will see any new dragonflies for the season. Several species will emerge towards the end of the summer, but for now I see the same familiar faces over and over again.

I really am content, though, with photographing the beauty of these wonderful aerial acrobats and never grow tired of photographing the same ones over and over. Each outing with my camera is an opportunity to capture images in a different way, in different environments, and in situations with different lighting.

Last  week I was delighted to capture these images of male Widow Skimmer dragonflies (Libellula luctuosa) during a visit to Occoquan Bay National Wildlife Refuge. I just love the brown and white patches on the wings of these dragonflies that make them really stand out from all other dragonflies in our area.

These shots also illustrate the fact that the shapes of the front wings of most dragonflies are different from the rear wings. I suspect that the different shapes play a role in enabling the amazing flight capabilities of dragonflies, although I confess that I do not understand very well the aerodynamics of dragonfly flight—their flight seems almost magical to me.

Widow Skimmer

Widow Skimmer

Widow Skimmer

© Michael Q. Powell. All rights reserved.

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Dragonflies perch in many different ways and in many different places. Here are some simple shots of three dragonflies that I encountered last Thursday at Occoquan Bay National Wildlife Refuge.

The first one is a Needham’s Skimmer (Libellula needhami) and I love the way that its coloration contrasts so well with the sea of green vegetation in which it is perched. The dragonfly in the second photo, my personal favorite of the three images, is a Blue Dasher (Pachydiplax longipennis). When it’s hot outside, some dragonflies, like this one, like to assume a handstand-like pose, often called the “obelisk” position, to reduce their exposure to the direct sunlight. The final photo shows a Great Blue Skimmer (Libellula vibrans) perched on the tip of a leaf.

Each of these shots represents my efforts to isolate a dragonfly a bit from its surroundings and to highlight its beauty and its behavior. None of theme is spectacular or award-worthy, but they are pleasing little portraits of some of my summer companions.

Needham's Skimmer

Blue Dasher

Great Blue Skimmer

© Michael Q. Powell. All rights reserved.

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It was hot and humid when I went trekking with my camera this past Wednesday and most of the wildlife seemed to be taking siestas in the shade at Occoquan Bay National Wildlife Refuge. I could hear the sounds of birds, but spotted only a few of them. Even the dragonfly activity seemed to be lower than normal.

Fortunately, a good number of butterflies were active. In fact they were so active, that I expended a lot of energy chasing after them. I noticed that several of them were showing some wear and tear, with visible damage to their wings.

The first and third photos show Black Swallowtail butterflies (Papilio polyxenes), while the butterfly in the middle shot is a Zebra Swallowtail butterfly (Eurytides marcellus). None of these images is spectacular, but I like the way that they work together as a set, with the green vegetation in the background of each of them serving as a unifying element.

Have a happy weekend and chase a few butterflies if you can find them—it will make you feel like a child again.

Black Swallowtail

Zebra Swallowtail

Zebra Swallowtail

© Michael Q. Powell. All rights reserved.

 

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Earlier this season I saw a lot of Osprey (Pandion haliaetus) activity at Occoquan Bay National Wildlife Refuge. Many of the Ospreys seemed to be attempting to build nests, but it was never clear to me which ones were viable. These potential nesting sites were scattered around the entire refuge, so I count not simply monitor them as I do with the two eagle nests.

One of these sites is a man-made nesting platform that is located in the middle of a field. It is a simple wooden platform atop a vertical post that looks like a telephone pole. During the off-season, when the ospreys have departed from our area, bald eagles often perch on this platform, but it is not suitable for a bald eagle nest.

Apparently, though, the nesting platform is suitable for ospreys. Last Friday, I noted a lot of activity at the platform and managed to capture this image of an osprey family. I was shooting a telephoto lens, but was a good distance away, so the shot is not quite as sharp and detailed as I would have liked. However, it is easy to pick out both parents and at least two baby ospreys.

That same day, I checked the eagle nest to see if I could see the eaglet that I had previously photographed, but did not see it. Previously it looked like the eaglet was almost ready to fly and it is possible that the eaglet is no longer spending its time in the nest, but I will be sure to check for activity the next time that I visit the refuge—it is one of my regular stops when I make the rounds at the wildlife refuge.

Ospreys

© Michael Q. Powell. All rights reserved.

 

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The calendar and the temperatures both tell me that we have entered into the long, hot, lazy days of summer. Here in the Washington D.C. area, where I live, that often means a lot of humidity too. Some days it can be a bit of a challenge to motivate myself to go out into the wild with my camera.

However, many dragonflies seem to love this kind of weather and the fields and ponds are abuzz with dragonfly activity. One of our common species is the Great Blue Skimmer dragonfly (Libellula vibrans). This past week I noticed a sharp increase in their numbers as I wandered the trails at Occoquan Bay National Wildlife Refuge.

Great Blue Skimmers have stunning blue eyes and white faces, which help to distinguish them from similar species. The Great Blue Skimmer in the first photo, which looks to be a young male, was cooperative and let me get quite close to him to get this close-up view of his head. Dragonflies of this species seem to have a pronounced overbite, which gives them a goofy grin that I find endearing.

I think that the dragonfly in the second shot is a female Great Blue Skimmer. Several dragonfly species share the same black and yellow coloration and pattern for juveniles and for females, so it can often be a real challenge to make a definitive identification. Fortunately, the differences among the species become more pronounced as the dragonflies mature.

 

Great Blue Skimmer

Great Blue Skimmer

© Michael Q. Powell. All rights reserved.

 

 

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I noticed on Friday that quite a few milkweed plants are now in bloom at Occoquan Bay National Wildlife Refuge. Hopefully they will attract some Monarch butterflies. In the meantime, I was happy to see this Red Milkweed Beetle (Tetraopes tetrophthalmus) with its cool “longhorn” antennae.

Over ten years ago, I encountered these strange-looking insects for the first time and was utterly fascinated by their appearance. That fascination has not diminished over time. Milkweed plants are amazing hosts to a wonderful variety of insects and it is always fun to examine them closely.

I was a pretty good distance away from this beetle, so I was not able to get a close-up shot of it, so settled for a shot that included a bit of the milkweed. I really like the resulting image, a reminder to myself that the primary subject does not necessarily have to fill the frame for a photo to be effective.

If you want a better view of a Red Milkweed Beetle, check out my June 2013 posting entitled “Red Milkweed Beetle—he’s back.”

Red Milkweek Beetle

© Michael Q. Powell. All rights reserved.

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Numerous Needham’s Skimmer dragonflies (Libellula needhami)) have recently emerged at Occoquan Bay National Wildlife Refuge. Yay! I just love the golden leading edges on the wings of this species. Male Needham’s Skimmers eventually turn reddish-orange in color, but initially have the same yellow and black coloration as the females.

In the first shot, I was thrilled to photograph a beautiful female as she perched on some colorful Eastern Gamagrass (Tripsacum dactyloides).  I cannot identify very many plants, but this one is distinctive enough that it has stuck in my memory. I love the expression on the dragonfly’s face–she seems to be either smiling at me or sticking out her tongue at me.

The Needham’s Skimmer in the second image also seems to be smiling. I think that it is a male, but cannot be certain from this angle of view.

Have a wonderful weekend. Needham's Skimmer

Needham's Skimmer

© Michael Q. Powell. All rights reserved.

 

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It is a simple law of nature that all creatures have to eat and many of my subjects are carnivores. The question of whether a creature is predator or prey is often a relative one—today’s predator can easily become tomorrow’s prey.

I try not to get emotionally involved when I witness one creature feeding on another, but that is not always possible. For me it is somewhat jarring when I see one dragonfly eating another—it feels like cannibalism.

For some reason, most such encounters that I have witnessed have involved Eastern Pondhawk dragonflies (Erythemis simplicicollis). This species is not at that large or powerful, but seems particularly fierce. Some other dragonflies catch their prey and eat while they are flying, their version of “fast food,” so that may be why I don’t see dragonflies consuming other dragonflies very often.

In the first photo, a female Eastern Pondhawk was feasting on a male Calico Pennant dragonfly (Celithemis elisa) that it had just caught. As you can see, the dragonfly holds its prey in its long legs and begins by eating the head.

In the second photo, taken at a different location, another female Eastern Pondhawk was munching on an unidentifiable damselfly. Readers sometimes ask me about the differences between dragonflies and damselflies and this photo gives you a general idea of the relative size and shape of their bodies.

According to a fascinating posting called “What do Dragonflies Eat?” on The Infinite Spider website, “All adult dragonflies are insectivores, which means they eat insects they catch with their spiny hairy legs.  The insects are then held in a basket-like device while flying. They particularly delight in mosquitoes (30-100+ per day per dragonfly!) as well as other pesky flight bugs  such as flies, butterflies, bees, and even other dragonflies.”

Check out the posting that I referenced in the previous paragraph, if you dare, for details about how dragonflies actually eat. Here is a sneak preview, “The main thing to notice is that they have jaws that work side to side and that are shaped like wicked meat hooks, mandibles that go up and down and maxillae that act like a lower lip and hold food.” Yikes!

Eastern Pondhawk

 

Eastern Pondhawk

© Michael Q. Powell. All rights reserved.

 

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Here is a look at what might be one or more of the parents of the young eaglet at Occoquan Bay National Wildlife Refuge that I featured in a recent post. Last Friday, the larger Bald Eagle (Haliaeetus leucocephalus) at the top was perched for an extended period of time in a tree overlooking the large nest when the second eagle flew in. They remained in place for several minutes before flying away.

Are these two eagles a couple? The one on the left is probably three to four years old and may not be mature enough to be a parent—it can take about five years for the head feathers to turn completely white and for an eagle to fully mature. On the other hand, if only the older one is a parent, it seems a little strange that it was so comfortable with an interloper zooming in and perching that close if they are not a couple.

Several Facebook readers commented that the eagles that were hanging around the nest earlier in the year both had completely white heads. What happened? We may need a paternity test to determine if this precocious young eagle is indeed the father.

So what do we have here? Is this a much older sibling of the eaglet in the nest? If so, where is the other parent? Female eagles tend to be larger than males, so it is quite possible that the eagle perched higher is a female. Maybe she is disappointed that there is only a single eaglet and is trying out a possible new mate. It is a bit of a mystery.

bald eagles

© Michael Q. Powell. All rights reserved.

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Earlier this month I did a posting called  Looking out of the nest that featured a young Bald Eagle (Haliaeetus leucocephalus) sitting up in a large nest at Occoquan Bay National Wildlife Refuge and wondered when it would be able to fly. Last Friday I returned to the refuge and was delighted to see the eaglet flapping its wings and testing them out—I think it is almost ready to fly..

The eaglet repeatedly extended its wings, but seemed a bit uncoordinated, like a gawky teenager who has experienced a growth spurt. Several times it was able to rise up into the air, but looked uncertain about what to do next. The photos below show some of the action, which lasted only for a few minutes. The eaglet then disappeared into the deep nest, possibly to rest after its exertion.

I watched for a while longer and eventually the eaglet reappeared, but it simply sat up, looking out of the nest. A fellow photographer told me that he spotted the eaglet the following day perched in the tree that you can see in the right side of the image. I suspect, though, that the eaglet will need some quite a bit more practice before it will be capable of venturing out on its own and, of course, it will have to learn how to fish.

I will probably make a trip to the refuge this week to check on the eaglet. So many of the nearby trees are covered with leaves that I may have trouble spotting the eagle, particularly because its dark, and mottled plumage help it to blend in well with the foliage. Adult Bald Eagles tend to stick out a bit more because of the bright white feathers on their heads.

Bald Eagle

Bald Eagle

Bald Eagle

© Michael Q. Powell. All rights reserved.

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