Color-banding California gulls at Great Salt Lake, Utah

In 1938, under the Pacific Color-Banding Project initiated by the Western Bird-Banding Association to study gull migration and life history, We stern Gulls and Glaucous-winged Gulls were banded along the coast and California Gulls at Mono Lake, California. The following year banding was undertaken in the California Gull colony on Egg Island, Great Salt Lake, by the write rs and in 1940 at Rock Island in Utah Lake by Vasco M. Tanner and others. Banding continued on Egg Island from 1939 to 1942 inclusive and on Rock Island from 1940 to 1942. War time exigencies prevented banding in 1943. In 1944, however, operations were transferred to a newly established colony at Farming to in Bay which is much more accessible than Egg Island.