Crested pigeons sound the alarm with their wings
Specialized feathers produce high and low tones when the birds flee in a hurry
![crested pigeon flying](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2017/11/110917_HT_pigeon-feathers_main.jpg?fit=860%2C460&ssl=1)
BEAT IT Crested pigeons coordinate their escapes with wing sounds rather than vocal calls. The sound production is tied to wing movement during takeoff, and thus a highly reliable alarm signal, researchers say.
Geoffrey Dabb