MAINE SUNDAY TELEGRAM • June 21, 2020
Bird calls are short vocalizations that serve various year-round functions. Flight calls, alarm calls and contact calls are good examples. Songs are complex vocalizations only used during the breeding season. However, the distinction between the two types of vocalizations isn’t always clear. A great free bird app is available from the National Audubon Society (audubon.org/app). There are multiple vocalizations for every species. It’s a marvelous learning tool. ~ Herb Wilson