Identifying a Bird in Flight

One of the most difficult skills to pick up as a birdwatcher is how to identify birds in flight. You have to sort through a series of visual clues all at once, at high speed: silhouette, wing shape, how fast it flaps, and patterning. An experienced birder will take in all these and other clues that are hard to put into words — and might say something like: “Look! A hawk! Must be a Cooper’s Hawk — it has that giss.” In other words, it has all the telltale signs. But where did this bit of birdwatching slang originate? 

More info and transcript at BirdNote.org. 

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