Male Costa's hummingbirds' strategical manipulation on how females perceive them.
Researchers show how male Costa's hummingbirds control the acoustics of a tail song produced during high speed dives
In the world of Costa's hummingbirds, it's not size that matters—it's sound. During breeding season, male Costa's perform a high-speed dive during which they "sing" to potential mates using their tail feathers.

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