_Breeding range._--The breeding range of the avocet extends north to Washington (Moses Lake and probably Walla Walla); northern Idaho (Pend Oreille); Alberta (Red Deer, Buffalo Lake, and Flagstaff); Saskatchewan (Osler, Quill Lake, and Touchwood Hills); North Dakota (Kenmare and Cando); Minnesota (Brown's Valley, Traverse County); and Wisconsin (Green Bay). East to Wisconsin (Green Bay); western Iowa (Sioux City); central Kansas (Larned and Dodge); and rarely to southern Texas (Corpus Christi and Isabel). South rarely to southern Texas (Isabel and Brownsville); New Mexico (Chloride); northern Utah (Salt Lake City); Nevada (Ruby Valley and probably Cloverdale); and southern California (Little Owens Lake, Kerrville, and Santa Ana). West to California (Santa Ana, Santa Cruz Island, Buena Vista Lake, Tulare Lake, Los Banos, Stockton, Amedee, Tule Lake, and Brownell); Oregon (Adel, Plush, Sumner Lake, and Christmas Lake); and Washington (Moses Lake). It has been recorded in summer north to British Columbia (Okanagan Landing); Manitoba (Brandon); and New York (Ithaca); while there also is an old breeding record for Egg Harbor, New Jersey. _Winter range._--North to Carolina (Novato and Stockton); and Texas (Houston). East to Texas (Houston, Corpus Christi, and Brownsville); Tamaulipas (Matamoros); and Guatemala (Chiapam). South to Guatemala (Chiapam); and Sinaloa (Escuinapa). West to Sinaloa (Escuinapa and Mazatlan); Lower California (San Jose del Cabo and La Paz); and California (San Diego, Morro Bay, San Francisco, and Novato.) _Spring migration._--Early dates of arrival are: Nebraska, Whitman, April 13, Long Pine, April 27, Alda, May 2, and Lincoln, May 5; South Dakota, Pitrodie, April 28, Huron, May 6, and Aberdeen, May 15; North Dakota, Marstonmoor, April 28; Manitoba, Margaret, May 5; Saskatchewan, Fort Carlston, May 4, and Dinsmore, May 9; Arizona, Ehrenburg, February 12, and Tucson, April 21; New Mexico, Albuquerque, April 14; Colorado, Loveland, April 9; and Denver, April 25; Utah, Salt Lake City, April 27; Wyoming, Huttons Lake, April 21, Lake Como, April 22, and Cheyenne, April 24; Idaho, Deer Flat, February 15, and Rupert, April 26; Montana, Great Falls, April 18, Fort Custer, April 26, Terry, May 1, Billings, May 3, and Big Sandy, May 18; Alberta, Beaverhill Lake, April 28, and Flagstaff, May 14; Nevada, Ash Meadows, March 15; Oregon, Klamath Falls, March 26, Narrows, April 11, Malheur Lake, April 17, and Lawen, April 19. Avocets have been noted at Lake Palomas, Chihuahua, on April 7, and at Gardner's Laguna, Lower California, on April 22.