Yellow-footed Gull (Larus livens) [XC465321]
by Todd Mark from Isla Santa Catalina, Baja California Sur, Mexico (call)
Yellow-footed Gull (Larus livens) [XC339880]
by Mark Holmgren from Bah\u00eda de los \u00c1ngeles, Ensenada, Baja California, Mexico (song)
Subspecies
Until recently treated as a subspecies of Western Gull (Larus occidentalis), but differs in vocal repertoire, particularly its lower-pitched long call. Some authorities consider it more closely related to, and perhaps derived from, Kelp Gull (Larus dominicanus).