adult WESTERN GULLS, L.o.occidentalis

Fig 1) Note the large bill. Photo courtesy of Ron Saldino. Copyright 1997.

Fig 2) Note the rather pale mantle for a "dark-mantled" gull, only a shade darker than California Gull. Also, these light head markings may be found on nominate occidentalis in winter. Photo courtesy of Don DesJardin. Copyright 1998.