Quiz - Question # 1

Song: Most common call is a clear, plaintive, two-syllabled whistle, dropping in pitch: "pee-you, pee-you". Also emits repeated, shorter piping notes.

Sound: Geoffery A. Keller (Macaulay Library, Cornell # 50290); 1990 Jun 16; USA, North Dakota; 30 km N from Stanley, Lostwood NWR, Burke Co; Adult; Primary Sound;