These Male Hummingbirds Manipulate the Sound of Their Flying to Attract Mates
Birds have evolved some very strange features and behaviors in order to woo mates. Birds-of-paradise feathers are a natural vantablack. Bowerbirds build elaborate and colorful nests. And it seems that Costa’s hummingbirds control how females hear the sound of their dives.
from Gizmodo https://ift.tt/2IS21cC
via IFTTT