Citation | Schreiber, R.W., 1970 Breeding biology of Western gulls (Larus occidentalis) on San Nicolas Island, California, 1968. The Condor 72:133-140. |
Ref. | 80153 Schreiber, R.W., 1970 |
Page | |
Named Used as Valid | Larus occidentalis |
Locality | |
Distribution | California. |