64 BULLETIN 17 6, UNITED STATES NATIONAL MUSEUM 



in fliglit, and the lateral tail feathers are conspicuously black, with 

 large terminal white areas clearly defined. At very close range the 

 yellow eyelids of this species may be seen. 



DISTRIBUTION 



Range. — Temperate North America, the Caribbean region. South 

 and Central America; casual on Bermuda and accidental in western 

 Europe. 



Breeding range. — The breeding range of the yellow-billed cuckoo 

 extends north to southern British Columbia (Kamloops) ; north- 

 eastern Oregon (Keenys Ferry) ; northern Utah (Salt Lake City) ; 

 northern Colorado (Loveland, Greeley, and Fort Morgan) ; South 

 Dakota (White RiA'er, Yankton, and Sioux Falls) ; Minnesota (Foss- 

 ton and St. Paul) ; Wisconsin (Ladysmith, Waupaca, and New Lon- 

 don) ; northern Michigan (Blaney and Sault Ste. Marie) ; southern 

 Ontario (Listowel, llosseau, and Ottawa) ; northern New York 

 (Watertown and Plattsburg) ; and southern Maine (Auburn). From 

 this point the breeding range extends southward along the Atlantic 

 coast to Florida (New Smyrna and Kissimmee) ; the Bahama Islands 

 Inagua Island) ; probably the Dominican Republic (Dajabon) ; and 

 the Virgin Islands (St. Croix). South to the Virgin Islands (St. 

 Croix) ; Jamaica (Port Henderson) ; Coahuila (Sabinas River) ; 

 southern Souora (Guaymas) ; and southern Baja California (San 

 Jose del Rancho). West to Baja California (San Jose del Rancho 

 and Cerro Prieto) ; California (Wilmington, Watson villc, Santa 

 Clara, and Redding) ; Oregon (Salem) ; Washington (Grays Harbor, 

 Tacoma, and Seattle) ; and British Columbia (Victoria, Chilliwack, 

 and Kamloops). 



The range as outlined is for the entire species, which has been 

 separated into two geographic races. The yellow-billed cuckoo {G. a. 

 americanus) occupies the eastern part of the range west to South 

 Dakota, Nebraska, eastern Colorado, and Oklahoma, while the Cali- 

 fornia cuckoo {C. a. occidentalis) is found over the rest of the country 

 to the Pacific coast. 



Winter range. — The winter home of this species has not been accu- 

 rately determined, but it extends north to northern Colombia (Santa 

 Marta, Bonda, Medellin, and Antioquia) ; and Venezuela (San Cris- 

 tobal, Altagracia, the Orinoco River region, and Nericagua). It has 

 been found at this season east to southeastern Brazil (Sao Paulo) ; 

 Uruguay (Rio Negro) ; and eastern Argentina (Buenos Aires and 

 Lomas de Zamora). South, probably only casually to central Argen- 

 tina (Lomas de Zamora and Saladillo). West to Argentina (Sala- 

 dillo and La Rio jo) ; Ecuador (Nono, Chimbo, Cumbaya, and 

 Guapulo) ; and Colombia (Cienaga and Santa Marta). 



