Christopher Clark is an assistant professor of Biology at the University of California, Riverside in Riverside, California.
Birds Of A Feather Flutter Together
Some birds use the shape of their feathers as a communication tool, using the sound their feathers make to relay messages.
A Look At Unconventional Bird Calls
Some bird calls come from an unexpected source—it’s not just males that perform calls, and some hummingbirds use their tail feathers to create chirps.