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California gulls are North American birds. They are found in regions of Mexico, the west coast of the United States, the Great Plains, and western Canada. The species has been reported to live in California, Colorado, Kansas, Nevada, North Dakota, Oregon, Texas, Utah, Washington, and Wyoming. The birds are found in different regions depending on the season. In the summer, during breeding season, they are found in parts of northwestern Wyoming, northern Utah, western Nevada, and northern California. During the winter, California gulls can be observed on the Pacific coast from southern British Columbia to southern Mexico. The gulls migrate to North Dakota, British Columbia, lower California, and Monterey, California during the spring. In the fall the gulls migrate southwest to the coast in the states of Washington, Oregon, and California.
Biogeographic Regions: nearctic (Native )