These hummingbirds aim their singing tail feathers to wow mates
![Costa's hummingbird](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2018/04/041218_SM_hummingbird_feat_FREE.jpg?fit=860%2C460&ssl=1)
SERENADE ME Male Costa’s hummingbirds will twist their tail sideways to direct the sound of fluttering tail feathers toward a female when diving past her in courtship.
Takahashi Photography/Shutterstock