216 CHECK-LIST OF NORTH AMERICAN BIRDS. 



a. Empidonax trailli trailli (Audubon). Traill's Flycatcher. [466.] 



Musdcapa trailUi Audubon, Birds Amer. (folio), I, 1828, pi. 45. (Woods 

 along the prairie lands of the Arkansas River.) 



Range. — Western North America. Breeds from southern British Columbia 

 and Idaho to southern California, Arizona, New Mexico, and Tamaulipas, east 

 to Missouri, Illinois, and Ohio; winters in Central America south to Nicaragua 

 and Colombia. 



b. Empidonax trailli alnonim Brewster. Alder Flycatcher. [466a.] 



Empidonax traiUii alnorum Brewster, Auk, XII, April, 1895, 161. 

 (Upton, Maine.) 



Range. — Breeds mainly in Hudsonian and Canadian zones from central 

 Alaska, northwestern Mackenzie, southern Keewatin, central Quebec, and 

 Newfoundland south to east central British Columbia, eastern Montana, 

 southern Minnesota, southern Ontario, New York, New Jersey, and moim- 

 tains of West Virginia; winters in Central America south to Panama; casual 

 in migration in South Atlantic States. 



Empidonax minimus (W. M. & S. F. Baird). Least Flycatcher. 

 [467.] 



Tyranmda minima W. M. & S. F. Baird, Proc. Acad. Nat. Sci. Phila., I, 

 1843, 284. (Carlisle, Pennsylvania.) 



Range. — Breeds in Canadian and Transition zones from west 

 central Mackenzie, southern Keewatin, Quebec, and Cape Breton 

 Island south to central Montana, eastern Wyoming, central Nebraska, 

 Iowa, Indiana, Pennsylvania, New Jersey, and in the AUeghenies 

 to North Carolina; in migration west to eastern Colorado and central 

 Texas; winters from northeastern Mexico and Yucatan to Panama 

 and Peru; accidental in Grand Cayman Island, West Indies. 



Empidonax hammondi (Xantus). Hammond's Flycatcher. [468.] 



Tyrannula hammondii Xantus, Proc. Acad. Nat. Sci. Phila., 1858, 117. 

 (Fort Tejon, California.) 



Range. — Breeds in Transition and Canadian zones of western 

 North America from southeastern Alaska, southern Yukon, and 

 central Alberta to southern California and Colorado; winters from 

 northern Mexico to the highlands of Guatemala. 



