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UC Riverside just recorded the strange wing sounds hummingbirds make mid-flight and during courtship — acoustic signatures now tied to brain circuits no one had mapped

When a male Anna’s hummingbird pulls out of a courtship dive at roughly 60 miles per hour, the air ripping through his outer tail feathers produces a loud, sharp chirp. It is not a vocalization. No ...
Discover Wildlife

"It sounds like the two-tone horn of a fast train approaching a station. Unfathomably, females find the noise attractive…"

There's nothing like the sweet sound of birdsong and it's easy to think that the sound of all bird calls is a beautiful music ...