Song: The chase calls are high pitched scratchy buzzed phrases "zrr jika jika jika jika jika". Contact calls are a high and sharp "stit"s. Male's display dive ends with an explosive buzzed squeak "twek".
Sound: Arthur A. Allen/David G. Allen (
Macaulay Library, Cornell # 6121); 1959 Mar 22; USA, California; Mojeska Canyon; Adult; Primary Sound;