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Posts Tagged ‘Canon 50D’

As I was looking over a whole range of the colorful flowers yesterday at Green Spring Gardens, I gradually realized that I was drawn most to those with simple shapes and relatively subdued colors, like the modest spiderwort (g. Tradescantia). There is a real beauty in its simplicity.

The bees seemed to like the spiderworts too, including one that I photographed with overfilled pollen sacs.

spiderwort

spiderwort

© Michael Q. Powell. All rights reserved.

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For a change of pace I decided today to visit Green Spring Gardens, a historical county-run garden that always has lots of beautiful flowers. Some purple poppies were among my favorites. Several of them were in bloom, surrounded by a large number of seed pods. A honey bee and I were attracted to the same flower at the same time—the bee ignored me and busily went about its work.

Purple Poppy

© Michael Q. Powell. All rights reserved.

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What is a Widow Skimmer? It sounds like a con artist who preys on rich older women, but it actually is a beautifully patterned dragonfly, like this juvenile male that I spotted recently at Huntley Meadows Park.
Why is it called a “widow?” According to bugguide.net, the species name of the Widow Skimmer (Libellula luctuosa) “means sorrowful or mournful, perhaps because the wings of both male and female seem to be draped in mourning crepe.” Only the male has white patches on its wings, so it’spretty easy to identify the dragonfly in the image as a male. Adult males have blue bodies and juvenile males and females have yellow and brown bodies.
Sometimes I wish that the identification of dragonfly species were this easy all of the time, but real life is generally much more complicated.
Widow Skimmer
© Michael Q. Powell. All rights reserved.

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Purple Milkweed (Asclepias purpurascens) is in bloom in multiple locations at Huntley Meadows Park and the butterflies are loving it, including this Silver-spotted Skipper (Epargyreus clarus) that I spotted this past Monday.
Generally I have trouble identifying little skipper butterflies and Wikipedia notes that there are more than 3500 species of skippers worldwide.  The Silver-spotted Skipper, though, is pretty easy to identify, given its distinctive colors and markings.
There are several species of milkweed in my favorite marshland park and I have noticed more Purple Milkweed this year than in the past. This is really good news, because Purple Milkweed is considered to S2 (“imperiled”) in the Commonwealth of Virginia, according to the 2016 plant list of the Virginia Department of Conservation and Recreation.
Silver-spotted Skipper

© Michael Q. Powell. All rights reserved.

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The sunlight shining through from behind helped to highlight the beautiful colors and patterns of this Painted Skimmer dragonfly (Libellula semifasciata) at Huntley Meadows Park this past Monday. Although I usually try to get more even lighting in my shots, I really like the way that this directional lighting has created areas of brightness and shadow, which seems to add a bit of drama to the image.

Painted Skimmer
© Michael Q. Powell. All rights reserved.

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When I first spotted a tiny Eastern Amberwing dragonfly (Perithemis tenera) flying low over the water and flexing yesterday at Huntley Meadows Park, I assumed that it was a female depositing eggs into the water. As I continued to watch (and try to get shots) a couple of things became clear—it was a male, not a female, and he was pointing his abdomen up into the air, not down into the water. What was he doing?

Apparently this is courting behavior and he was trying to impress a lady that he had spotted. There is a fascinating description of this process in a blog posting by the University of Wisconsin Milwaukee Field station that I highly recommend. Here is an extract from that posting.

“A male flies low over the water, patrolling a territory about 20 feet wide of choice egg-laying turf (weedy aquatic sites) and defending it vigorously – darting out at intruders and displaying with those spectacular wings. When a female approaches, he follows and courts her, swaying back and forth, abdomen raised. If she’s agreeable, she follows him home. He hovers over his territory while she evaluates it, and if she likes it, she gets him along with it.”

As the third photo shows, his courting behavior was successful. After they mated, she deposited the eggs into the water and he returned to his perch, ready to chase off rivals and attract more female dragonflies. (In case you are not familiar with this dragonfly species, the Eastern Amberwing is one of the smallest dragonflies in the United States, with a body length of just under one inch (25 mm).

Eastern Amberwing

 

Eastern Amberwing

Eastern Amberwing

Eastern Amberwing

© Michael Q. Powell. All rights reserved.

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Females are a real mystery to me, especially when it comes to dragonflies. At this time of the year I see a lot of different dragonflies and I have featured a number of the colorful males over the past few weeks. They are relatively easy to identify when they are mature—immature males, however, often have the same coloration as females.

The challenge with females, particularly a number of the members of the Skimmer family, is that they all look pretty much the same.  This past Friday I photographed this beautiful female dragonfly and I love the two-toned coloration of her eyes. After consulting with my local dragonfly expert Walter Sanford, I have concluded that she is probably a Great Blue Skimmer (Libellula vibrans), though she doesn’t have a spot of blue on her

Great Blue Skimmer

© Michael Q. Powell. All rights reserved.

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If you want a real photography challenge, try to get shots of dragonflies while they are in flight. Dragonflies are so small and generally move so quickly that it’s tough for the camera’s focusing system to lock onto them. On some occasions, dragonflies will hover for a few second or will follow the same route repeatedly and it’s slightly easier in those situations to capture images of the dragonfly.

Yesterday I spotted a dragonfly flying low over a slow-moving stream with its legs dangling. I have previously seen Common Sanddragons (Progomphus obscurus) on the sandy banks of this stream, but I had never seen a sanddragon act this way before. Most of the times that I have managed to get shots of dragonflies in flight, they have their legs tucked in, presumably to make themselves more aerodynamic. Initially I thought the dragonfly was coming in for a landing, but it flew around for a little while with the dangling legs.

What was this dragonfly doing? I don’t know for sure, but I wonder if perhaps this is a female dragonfly who was looking for a place in the water to deposit her eggs. Some dragonfly species deposit their eggs in vegetation and others will do so in the water.

I took these shots with my 180mm macro lens using auto focus.  I am happy that they are more or less in focus and show some of the details of the dragonfly. I like too the way that I was able to capture the dragonfly’s shadow as it was cast onto the water.

Common Sanddragon

Common Sanddragon

© Michael Q. Powell. All rights reserved.

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I love the speckled blue eyes of the male Great Blue Skimmer dragonfly (Libellula vibrans), like this spectacular specimen I spotted Monday at Huntley Meadows Park in Alexandria, Virginia.

Great Blue Skimmer

Great Blue Skimmer

© Michael Q. Powell. All rights reserved.

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I love it when there are unique characteristics that help in identifying species. In the case of dragonflies, the Spangled Skimmer (Libellula cyanea) is the only dragonfly in our area that has both black and white stigma on the leading edge of its wings. It was therefore relatively easy to identify this beautiful female dragonfly when I spotted it this past Monday at Huntley Meadows Park and she cooperated by perching for a moment so that I could capture this image.

Spangled Skimmer

© Michael Q. Powell. All rights reserved.

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When I noted in a recent posting called Transformation, that I had not yet witnessed the remarkable metamorphosis of a dragonfly, I never suspected that only a few day later I would somehow manage to observe such a transformation of a Common Sanddragon dragonfly (Progomphus obscurus) from start to finish at relatively close range.

Nymphs of this species of dragonfly crawl out of the water onto a sandy beach to begin the process and I knew of the bank of a stream where this had been taking place over the past week or so, having observed there newly emerged teneral dragonflies and the discarded exoskeletons known as exuviae. However, what were the chances that I would be able to be at the right location at precisely the right time? I figured the odds were about the same as winning the lottery.

Last Friday around noon I spotted several exuviae in the sand as I was walking along that section of the stream. I bent down, picked them up, and placed them in the palm of my hand in order to get a good look at them. Having spotted Unicorn Clubtails in this location along with Common Sanddragons, I wondered if these was a way to tell which species of dragonfly had emerged from a given exuvia. As I continued to walk, I suddenly became aware that something was crawling around in my hand—one of my presumed exuviae was in fact a live nymph.

I experienced an initial moment of shock, but realized pretty quickly that I needed to get the nymph back onto the sand. If I had been thinking a little more clearly, I might have chosen a spot that optimized my chances for capturing good images, but instead I selected a location where I could see another exuvia and gently placed the nymph there.

I placed my eye to the viewfinder of my camera and began to wait and to watch. Within a very short period of time I began to see signs of movement in the thorax area of the nymph, just behind the eyes, and before long the head of the dragonfly appeared as it began to pull its body out of the soon-to-be-discarded shell. It took about eight minutes for the body to be entirely free of the exoskeleton.

The dragonfly changed positions so that it could extend its abdomen and begin the process of extending its wings, which at this stage were merely nubs. Over the next twenty minutes or so, the wings and the abdomen grew larger and larger. My original shooting position was no longer optimal, so I ended up standing in the stream to get a view of what was happening. The water was about six to eight inches deep (15 to 20 cm) and my non-waterproof boots were quickly soaked. As I crouched to get as close as I could to the eye level of the dragonfly, I suddenly realized that the seat of my pants was getting wetter.

Twenty seven minutes after the process had started, the wings of the newly emerged dragonfly snapped open to the familiar position of dragonfly wings. At this moment they were very clear and obviously very fragile and I experienced a moment of concern for the vulnerable dragonfly when a slight wind kicked up. Fortunately, though, I had chosen a somewhat sheltered position and the dragonfly was safe. The wings continued to harden and six minutes later the dragonfly flew off to some nearby vegetation to begin its new life.

I took a lot of photos of the process of metamorphosis and it was hard to choose which ones to post. In the caption area of each of them,I have indicated the time at which the photo was taken. The transformation began at 12:19 and the dragonfly flew away at 12:52.

Fellow dragonfly enthusiast and photographer Walter Sanford witnessed the emergence of a Common Sanddragon at a nearby, but different location on 1 June and did a blog posting on it today. Be sure to check out his posting for some great photos and a detailed explanation of what is happening within the dragonfly’s body as it undergoes this dramatic metamorphosis.

Common Sanddragon

12:19 indications of first movement

Common Sanddragon

12:21 head starts to become visible

 

Common Sanddragon

12:22 dragonfly starts to pull out of shell

Common Sanddragon

12:22 body of dragonfly starts to be visible

Common Sanddragon

12:23 body significantly out of shell

Common Sanddragon

12:24 side view of dragonfly pulling body out of shell

Common Sanddragon

12:25 struggling to get abdomen out of shell

Common Sanddragon

12:27 body completely freed

Common Sanddragon

12:27 straightening the abdomen

Common Sanddragon

12:28 starting to extend wings

Common Sanddragon

12:29 continuing to extend wings

Common Sanddragon

12:31 wings extended

Common Sanddragon

12:40 wings reach final length

Common Sanddragon

12:48 wings fully opened

Common Sanddragon

12:52 close-up of newly emerged dragonfly

© Michael Q. Powell. All rights reserved.

 

 

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Spring is a time for chasing butterflies. This past week there seems to have been an explosion of Great Spangled Fritillary (Speyeria cybele) butterflies and I saw them at multiple locations yesterday as I trekked about in Huntley Meadows Park. The butterflies were very active, stopping for only short periods of time at flowers before moving on to the next one. My chasing behavior was impeded somewhat by the tall vegetation that has grown up in the fields, thanks to the large amount of rain that we had in May.

One of my favorite approaches with butterflies is to try to get at eye level with then and a few times yesterday I was able to get the kind of shot that I really like.

Great Spangled Fritillary

Great Spangled Fritillary

© Michael Q. Powell. All rights reserved.

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Where do you go to find sanddragons? Although it sounds like a trick question, the correct response is the obvious one—you generally find Common Sanddragon dragonflies (Progomphus obscurus) perched on the sandy bank of a stream. Sometimes Common Sanddragons will perch almost flat on the sand, but often they will raise their abdomens up, sometimes assuming the obelisk position, in which the tip of the abdomen is pointing almost straight up. Why do they do this? The most frequent explanation for this behavior that I have seen is that it is a method of thermoregulation. The dragonfly keeps from overheating by reducing the amount of its body that is directly exposed to the sun.

Common Sanddragon

Common Sanddragon

© Michael Q. Powell. All rights reserved.

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There were lots of Common Grackles (Quiscalus quiscula) foraging Friday at Huntley Meadows Park and I was thrilled when one of the stood still for a moment and I was able to snap off this shot. At times grackles appear to be almost pure black, but when the light is right, they shimmer with shades of green and pink.

Common Grackle

© Michael Q. Powell. All rights reserved.

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While exploring Meadowood Recreation Area in Lorton, VA last month with fellow photographer Walter Sanford, I observed this Giant Water Bug (Lethocerus americanus) perched in the vegetation at the edge of a small pond. The bug’s size and its pose remind me of a tree frog—it’s over 2 inches (5 cm) long.
I have since learned that these bugs are nicknamed “toe-biters” and am happy that I didn’t get too close to it.
Giant Water Bug
© Michael Q. Powell. All rights reserved.

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Do you have a favorite dragonfly? One of my favorites is the Unicorn Clubtail (Arigomphus villosipes)—I love both its appearance and its name. Earlier this week, on the last day of May, I spent some time chasing an elusive unicorn at Huntley Meadows Park and captured a few photos of it. The second shot gives you a glimpse of the “horn” between the dragonfly’s eyes that is responsible for the first part of its name.

Unicorn Clubtail

Unicorn Clubtail

© Michael Q. Powell. All rights reserved.

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Dragonflies spend most of their lives as nymphs in the water.  When the time is right, they crawl out of the water, break out of their exoskeletons, and turn into the colorful aerial acrobats that I love to watch and to photograph.

Although I have seen photos and videos of this amazing transformation, I have not yet witnessed the entire process in person. However, this past weekend I did spot some newly emerged Common Sanddragon dragonflies (Progomphus obscurus) at Huntley Meadows Park. Nymphs of many dragonfly species attach themselves to vegetation as they undergo their metamorphosis, but Common Sanddragon nymphs merely crawl out of the water onto a sandy area at the edge of a stream.

After I had spotted the dragonflies, I scoured the sandy stream bank and managed to find some cast-off skins (exuviae). Looking at the exuvia in the photo, you can see how the nymph has broken through the shell just behind the eyes and crawled out. The stringy white things on the top of the exuvia are breathing tubes used by the nymphs.

My last image is a visual reminder of how complicated and delicate this transformation can be be. The dragonfly obviously had some kind of a problem in expanding its wings and it is doubtful that it was able to survive for very long.

Common Sanddragon

Common Sanddragon

Common Sanddragon

Common Sanddragon exuvia

Common Sanddragon

© Michael Q. Powell. All rights reserved.

 

 

 

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Many damselfly species look so much alike that they are visually indistinguishable for me. I never have that problem, however, with the Ebony Jewelwing (Calopteryx maculata)—its dark wings and emerald body set it apart from all other damselflies in my area.

I spotted this distinctive little beauty yesterday, the last day of May, at Huntley Meadows Park in Alexandria, Virginia alongside one of the creeks in a remote area of the park. As I went through my photos I was drawn to this one, because of the wing positions.

When I showed a similar shot to my local dragonfly expert Walter Sanford, he immediately noticed the curve in the abdomen, something that I hadn’t even seen. I initially dismissed it as some kind of flexing by the damselfly, but when I noted the same curve in all of my images, I realized that it may be a deformity, as Walter initially suggested. Fortunately, the damselfly appeared to be able to fly normally despite the curved abdomen.

Ebony Jewelwing

© Michael Q. Powell. All rights reserved.

 

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When Freckles heard the sound of a fire engine in the distance, she stopped playing and listened intently for a moment. She then leaned back her head and began to howl along with the sound of the siren. Who knew that Cocker Spaniels like to howl?

For the last two and a half weeks I have been taking care of Freckles while her owners have been on their honeymoon. It’s been a joy (and occasionally a challenge) having a dog in my life again. During this short time we have developed our own little routines and, among other things, I’ll miss her curling up around my feet as I use my laptop.

Freckles

Freckles

Freckles

© Michael Q. Powell. All rights reserved.

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I don’t see deer very often at my local marshland park. When I do, it is generally only a flash of their white tails as they bound out of sight. On Friday, however, I spotted a young White-tailed Deer (Odocoileus virginianus) foraging in the forest at Huntley Meadows Park on the other side of a small stream from where I was located.

I stopped and crouched and the deer slowly moved closer and closer to me. I think that the deer was aware of my presence, but did not seem to view me as a threat. I did not want to move around too much for fear of spooking the deer, so I used the lens that was on my camera at that moment and stayed in place. A 180mm macro lens would not have been my first choice for photographing a deer, but it worked out surprisingly well.

As the deer moved forward, I thought it might try to hop over the stream right where I was at, but eventually the deer moved upstream a bit and made its way to the side of the stream on which I was standing. It lingered for a while in a field before it finally disappeared from sight.

Here are a few shots from my encounter with the young deer. My favorite one might be the first one—I had no idea that deer were so flexible. The third image, which I only cropped a little gives you an idea of how close the deer was to me.

White-tailed Deer

White-tailed Deer

White-tailed Deer

White-tailed Deer

© Michael Q. Powell. All rights reserved.

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The coloration of this female Eastern Pondhawk dragonfly (Erythemis simplicicollis) helped it to blend in almost perfectly with the lush green vegetation this past Friday at Huntley Meadows Park. This species of dragonfly is not only beautiful, but it is also deadly. I was reminded of this latter fact when I realized why the dragonfly had stopped and perched—it was consuming a small moth that it had just caught.

Eastern Pondhawk

© Michael Q. Powell. All rights reserved.

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Occasionally I complain that some species with names that include “common” are rare, but Common Whitetail dragonflies (Plathemis lydia) are in fact quite common. They are among the first dragonflies to appear in the spring and among the last to disappear in the autumn.

Even though I see them all of the time, I’ll frequently photograph Common Whitetails, with the hope of capturing a new or different view of the dragonfly. Yesterday was sunny and I knew that I would have trouble photographing male Common Whitetails, because their bodies are so white. Usually they end up overexposed with the highlights blown out.

To try to compensate for that problem, I set the metering mode on my camera for spot metering and I was able to capture this shot. The dragonfly is a male, but has not yet acquired the bright white of an adult male, which made things a little easier. I managed to get a proper exposure for the body and the rest of the image is a bit underexposed. The result was a kind of dramatic lighting effect that helps me to highlight the uncommon beauty of this common species.

Common Whitetail

© Michael Q. Powell. All rights reserved.

 

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I love watching Green Herons (Butorides virescens) stalk a prey. Their movements are so focused, cautious, and deliberate they appear to be moving in slow motion.

Like the Great Egret that I featured yesterday, Green Herons migrate out of my area during the fall and it is always exciting to welcome back these colorful little herons. Green Herons often are often hidden in the vegetation at water’s edge, but this one cooperated by moving along a log in the water as it tracked its potential prey. This particular hunt was not successful and shortly after I took this photo, the heron flew off to a more distant location.

Green Heron

© Michael Q. Powell. All rights reserved.

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Every spring I look forward to the return of the elegant Great Egrets (Ardea alba) to our area. Unlike Great Blue Herons, which are with us throughout the winter, the egrets migrate south and return only in mid-spring when the weather has warmed up a bit.

One of the highlight of egrets at this time of the year is their beautiful breeding plumage and the green lores (the area between the bill and eye). When I spotted an egret grooming itself in the early morning, I was able to capture a sense of the long additional plumes that it was sporting.

Great Egret

Unlike Great Blue Herons, which patiently wait for a big catch, this Great Egret at Huntley Meadows Park seemed content with a series of small bites. I think that it is a little fish, but I am not entirely certain what the egret is consuming as a snack.

Great Egret

© Michael Q. Powell. All rights reserved.

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Necrophila americana—what a creepy Latin name for this beetle, known in English as the American Carrion Beetle, that feeds on dead and decaying flesh. Fortunately the backdrop was more pleasant for this specimen that I spotted on Monday in one of the fields at Huntley Meadows Park.

American Carrion Beetle

© Michael Q. Powell. All rights reserved.

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It’s dragonfly season and this past Friday fellow dragonfly enthusiast and photographer Walter Sanford guided me to a new spot to search for the elusive beauties. Accotink Bay Wildlife Refuge is a nature preserve located on Fort Belvoir, a nearby military base in Fairfax County, Virginia.

We are in a lull period of sorts for dragonflies—some of the early dragonflies are gone and others have not yet appeared. As we were making one final swing through likely locations, having come up almost empty-handed in our search, Walter spotted a dragonfly. The wings were so clear and shiny that it was obviously a teneral dragonfly, one that had only recently emerged.

Identification (and photography) was a bit of a challenge, because the young dragonfly was perched inside of a tangled mass of vegetation, making it almost impossible to get an unobstructed view. Eventually we were able to find a visual tunnel and I was able to get the first shot below. It gives a pretty good view of the dragonfly, which after the fact I could clearly see is a Spangled Skimmer (Libellula cyanea), but I really wasn’t satisfied with it.

Eventually I managed to get a second shot. It doesn’t show the dragonfly’s entire body and many element are out of focus, but it has an artistic sense that I find really appealing. I’m not sure if it’s because of the more vibrant colors or the unusual angle—I just know I like that image a whole lot more than the first one.

Spangled Skimmer

Spangled Skimmer

© Michael Q. Powell. All rights reserved.

 

 

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As I turned to photograph a tiny damselfly perched on an overhanging branch, it flew down to the water. Initially I was disappointed, but then I looked more closely through my camera’s viewfinder. The male Fragile Forktail (Ischnura posita) had landed on a floating leaf and had assumed a pose that made it look like he was riding a surfboard. As a bonus, I was able to capture a fascinating area of bubbles in the algae in the foreground of the image.

Fragile Forktail

© Michael Q. Powell. All rights reserved.

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While I was hunting for dragonflies the past Friday at Meadowood Recreation Area in Lorton, Virginia, I managed to get this shot of a hoverfly (family Syrphidae) on what I was told was blue-eyed grass (Sisyrinchium) by some folks conducting a wildlife survey.

I had no idea what blue-eyed grass was, so I turned to the internet when I got home. It turns out that blue-eyed grass is not actually a grass, but a perennial plant of the iris family, and sometimes it is not blue. According to Wikipedia, the genus of blue-eyed grasses includes up to 200 species that may have blue, white, yellow, or purple petals.

hoverfly

© Michael Q. Powell. All rights reserved.

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Most dragonflies like sunshine, so it’s been tough this month to find very many of them, given the almost constant cloud cover and frequent rain showers. Here are a few shots nevertheless of female Common Whitetail dragonflies (Plathemis lydia) from earlier in May. All of them appear to be young ones, in particular the one in the final shot, whose wings have not yet acquired their final coloration, indicating that it has only recently emerged.

Common Whitetail

Common Whitetail

Common Whitetail

© Michael Q. Powell. All rights reserved.

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At this time of the year I love seeing irises growing in the wild at Huntley Meadows Park. I think these all are Blue Flag Irises (Iris versicolor), though I am not absolutely certain of this identification. These irises are not as big and showy as the ones growing in my neighbors’ gardens, but I find them to be equally beautiful.

Blue Flag Iris

Blue FLag Iris

Blue FLag Iris

© Michael Q. Powell. All rights reserved.

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As I was wandering through the woods of Huntley Meadows Park last Friday, I came upon a giant Luna Moth (Actias luna) that seemed to be almost as big as my hand. I was trying to get a close-up of its really cool antennae when an ant crawled onto one of the moth’s legs. I thought the ant might become lunch until I learned that Luna Moths don’t eat—they have no mouths and they only live for about a week as adults, with a sole purpose of mating, according to a Fairfax County Public Schools webpage.

Luna Moth

Luna Moth

Luna Moth

© Michael Q. Powell. All rights reserved.

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