8 BULLETIN 107, UNITED STATES NATIONAL MUSEUM. 
Mr. W. L. Dawson (1909) describes it as “a voice, high and broken, 
like nothing else perhaps so much as the creak of a neglected pulley 
block.” He says that the notes of the two sexes are different. 
Winter.—During the latter part of September the western grebes 
migrate to the Pacific coast, where they spend the winter in large 
numbers, from Puget Sound to Lower California and Mexico, both 
on the seacoast and in the larger lakes. They often gather into large 
flocks, sometimes numbering several thousands, and wander about, 
following the movements of the fish on which they feed and which 
they are expert in catching. 
DISTRIBUTION. 
Breeding range—Western North America, particularly the prairie 
regions. East to central Manitoba (Lake Winnipegosis, Lake Mani- 
toba, and Shoal Lake), east central North Dakota (Devil’s Lake 
region), central eastern South Dakota (Hamlin County), and Ne- 
braska (Garden County). South to northern Wyoming (Lake De 
Swet), central Utah (Utah Lake), and southern California (Mystic 
Lake, Riverside County). West to central western California (Lake 
Merced, San Francisco County), central Oregon (Klamath Lakes), 
and central western British Columbia. North to central British 
Columbia (Stuart Lake, Cariboo district), northern Alberta (near 
Edmonton), and north central Saskatchewan (Quill Lake). Noted 
in summer, but not found breeding, in Arizona (near Yuma) and 
southern California (Santa Barbara and San Diego). 
Winter range.—West and south of the Rocky Mountains, mainly 
on the Pacific coast. East to central British Columbia (Okanagan 
Lake), western Washington (Olympia), western Nevada (Pyramid 
Lake), southwestern Arizona (Gila River), and northern Mexico 
(Chihuahua). South to southern Mexico (Pueblo and Jalisco). 
West to the Pacific coast of Mexico and the Ynited States. North 
to southern British Columbia (Vancouver Island) and northern 
Washington (Puget Sound region). 
Spring migration.—Northward along the Pacific coast starting in 
April. Lower California: Colnett Bay, April 7-8. California: 
Santa Cruz Island, April 24 to May 2; Salton Sea, April 19. Wash- 
ington, Steilacoom, April 21; Lake Chelan, May 11; Columbia River, 
May 19. British Columbia: Elko, Bayne Lake, May 2; Stuart Lake, 
May 6; Vancouver Island, April 24 to May 6. 
Northeastward across the Rocky Mountains early in May. Nevada: 
Washoe Lake, May. Montana: Great Falls, May 9. Alberta: Banff, 
May 8. Saskatchewan: Indian head, May 12 to 30. 
Fall migration—Southwestward across the Rocky Mountains. 
Wyoming: Douglas, October 13. Colorado: Vicinity of Denver, Octo- 
ber 25 to November 28. Arizona: Gila River, November. 
