Song-type matching in the song sparrow

摘要: Song playback to song sparrows (Melospiza melodia) in a resident population Washington state showed that the tendency of birds respond with same type (match) depended on identity singer. Matching rates were high 'self (60%) and 'stranger' (50%) low 'neighbor' (20%, not significantly above chance level). The higher matching rate stranger was particularly interesting, since neighbor test songs generally more similar subjects' than (the self songs, course, most similar). importance neighbour–stranger contrast, addition similarity, eliciting confirms conclusions from earlier studies great tit (Parus major) western meadowlark (Sturna neglecta).