The crested treeswift is a species of tree swift. It was for some time considered the same species as its eastern relative, the gray-rumped treeswift, but they do not interbreed where their ranges overlap. It is distinct in flight, with long, bowed wings and a deeply forked tail that usually appears narrow and pointed.
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Low-Light Telephoto Systems
Identifying specific features of the Crested Treeswift requires high-contrast magnification. Check out the top-rated 8x42 optics.