A team of US scientists have shown that the Male Anna's Hummingbird uses its rear tail feathers to make a chirping noise.
The team used specialised footage to show that male hummingbirds' tail feathers vibrated during high-speed dives that can exceed 50mph in displays to females.
The BBC have more info and film and sound recordings.
On top of everything else they do so splendidly. Wow.
ReplyDeleteI didn't realise that I had any hummingbirds, let alone that US scientists had been round to study them!!
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