Biologists Crack Code of Chickadee Song
By Elise Kleeman
DISCOVER Vol. 26 No. 10 | October 2005 | Biology & Medicine
Who would have guessed that when a chickadee opens its tiny beak, it has a lot to say? Biologists studying the alarm calls of black-capped chickadees found the bird’s songs signal not only the presence but also the size of nearby predators.