The large, heavily built gray pigeon frequents the forests and woodlands of the West; most often seen in flocks of varying sizes in rapid flight. Wings make a loud clapping sound when flushed.

Michael L. Casazza, Julie L. Yee, Michael R. Miller, Dennis L. Orthmeyer, Daniel R. Yparraguirre, Robert L. Jarvis, Cory T. Overton https://www.jstor.org/stable ...