86 The Ohio Journal of Science [Vol. XVIII, No. 3, 



Chars, subsp. — Bill rather small; upper surface decidedly 

 greenish; wing-bars whitish, tinged with greenish or yellowish. 



Measurements. — Male:t Wing, 04. 5-78 (average, 71.7) mm.; 

 tail, 54-62.5 (58.2); exposed culmen, 11-13 (12); tarsus, 15.5- 

 17.5 (16.7); middle toe without claw, 9-10.5 (9.5). 



Female:J Wing, 64.5-75.5 (average, 68.3) mm.; tail, 51.5- 

 61.5 (55.2); exposed culmen, 10-12.5 (11.6); tarsus, 14.5-17.5 

 (16); middle toe without claw, 8.5-10 (9.4). 



Type locality. — Borders of the woods along the prairie lands 

 of the Arkansas River, Arkansas. 



Geographic distribution. — North America, except the extreme 

 northern part, south to Central America and northwestern 

 South America; no authentic record for the West Indies. 

 Breeds in the Hudsonian, Canadian, Transition, Upper Austral, 

 and occasionally the Lower Austral zones in North America, 

 north to Newfoundland, central Quebec, northern Ontario, 

 northern Manitoba, northwestern Mackenzie, and central 

 Alaska; west to western and southeastern Alaska and western 

 British Columbia; south to central southern British Columbia, 

 northwestern Montana, southeastern Montana, southern South 

 Dakota, northeastern Colorado, central Arkansas, southern 

 Kentucky, southern West Virginia, western Maryland, Penn- 

 sylvania, and northern New Jersey; east to eastern Massa- 

 chusetts, eastern New Hampshire, eastern Maine, Nova 

 Scotia, and Newfoundland. Winters south to Ecuador; and 

 north to northern Colombia, Costa Rica, Nicaragua, and 

 Yucatan, Mexico. Migrates west to central Colorado, western 

 Texas, and Oaxaca. 



Remarks. — The best characters to distinguish the eastern 

 form of this species from that of the western United States, from 

 Colorado to California, are the more greenish upper surface, the 

 more greenish or yellowish wing-bars, and smaller bill. Every 

 specimen does not exhibit all these characters to the best 

 advantage, but enough are usually present to render possible 

 satisfactory identification. Furthermore, the eastern bird is 

 somewhat darker above, though this is not more than an average 

 character. 



jThirty-seven specimens, from New England, Illinois, Minnesota, North 

 Dakota, and Montana. 



JTwenty-eight specimens, from New England, Pennsylvania, New Jersey, 

 District of Columbia, Indiana, Illinois, North Dakota, Yukon, and Alaska. 



