Why do eagles scream? Most of the times when I hear a Bald Eagle (Haliaeetus leucocephalus) screaming, the eagle is by itself and appears to be signaling its location to its mate. This past Monday, though, I spotted a Bald Eagle couple perched together on an osprey nesting site not far from their nesting location. The eagles seem to enjoy hanging out at this location that gives them a clear view of the tree in which the nest is located.
I am posting this little sequence of photos out of order, because the first image best tells a story, although it is not completely clear what that story is. The female eagle, the larger of the two, is on the lower level and seems to be screaming at her mate who is perched higher on the pole. A moment earlier they were both on the lower level and both eagles appeared to be calm, as you can see in the second image. Then the male hopped to the higher level and the female began to scream.
In the final shot, the female has turned away and the male is now screaming. Was he responding to his mate or was he screaming at something else? I guess you can connect the dots of this story in any way that you like.
As I was doing a little research on screaming eagles I came across a fascinating National Public Radio (NPR) article entitled “Bald Eagle: A Mighty Symbol, With A Not-So-Mighty Voice.” The article posits that most people have an incorrect idea of what an eagle scream sounds like and blames Hollywood. According to bird expert Connie Stanger, “Unfortunately for the bald eagle, it has like a little cackling type of a laugh that’s not really very impressive for the bird” and in most movies the sound of the eagle is actually dubbed by a Red-tailed Hawk. (I imagine a hawk in a sound booth with headphones dubbing over the eagle’s calls.)
If you click on the link above and then click the button on the website called “57 Second Listen,” you can hear a short clip of the NPR broadcast that includes both the call of the eagle and that of the Red-tailed Hawk. As for the question in the posting’s title, I personally like to think that it was a conversation, but acknowledge the distinct possibility that they were individually responding to a commonly-perceived threat. I think that my interpretation allows for more creative possibilities as I try to imagine the domestic conversations of a Bald Eagle couple. 🙂
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Mike Powell 