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The soundtrack is no less weird: each species has a characteristic pop, snap, ruffle, or whir typically produced mechanically with their wings. No vocal cords required. (You can listen to a ... Bostwick’s research in this 2005 BirdScope article and in this post by Carl Zimmer at Discover magazine’s blog. If you’ve never seen a manakin moonwalking, this clip from Nature is a must- ...
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