ML51272

媒体文件注释

NOTES: Fox Sparrow #8A and 8B; This recording could be either one or two different birds; Bird attracted and induced to sing by playback of previously recorded song; Purpose of sound: singing in defense of nesting territory; Behavior accompanying vocalization: perched about 6ft. up in an Alder bush, perched about 4ft. up on a broken down Alder bush; When not vocalizing, bird was feeding young. Sound stimulation was (other): see notes.