14. Only forehead and superciliary stripe red; wing feathers 



edged with grayish House Finch, male. 



15. Crimson of crown deeper than rest of body; under tail-coverts 



streaked Cassin Purple Finch, male. 



15. Purple of crown same shade as rest of body; under tail-coverts un- 



streaked Purple Finch, male. 



16. Back not streaked (17) — back streaked (19) 



17. Back yellow or brown; male yellow with black crown and wings, 



■female brownish above, white below (18) 



17. Back olive-green; yellow below, with a white wing spot; male with 



crown black Arkansas Goldfinch. 



18. Larger (wing 3 inches, tail 2); paler, more extended white 



markings Western Goldfinch. 



18. Smaller (less than above) ; darker, more restricted white 



markings. . Goldfinch. 



19. Not streaked below; white marked with brown and black. Snow Bunting. 



19. Streaked below (20) 



20. Yellow bars on wings and tail; very streaky; wing under 



3 inches Pine Siskin. 



20. No yellow bars; wing over 3 inches (21) 



21. Tail not notched — House Finch, female — tail deeply notched (22) 



22. Under tail-coverts streaked Cassin Purple Finch, female. 



22. Under tail-coverts unstreaked Purple Finch, female. 



23. Head conspicuously crested; male red, female gray and red. . . .Cardinal. 



23. Head not crested. ■. (24) 



24. Front claws small, little curved; hind claw straight, longer 



than toe (25) 



24. Front claws larger, curved; hind claw curved, either shorter 



than toe or very stout (29) 



25. Tail white except two middle feathers and a broad dusky tip; bill 



stout McCown Longspur. 



25. Tail with outer feathers mostly white without dark tip, inner ones 



mostly dark; bill rather slenderer (26) 



26. Four outer tail feathers with much white at base 



. .Chestnut-collared Longspur. 



26. Outer tail feathers dusky at base, only two with white (27) 



27. Under parts buffy; second outer tail feather mostly white 



Painted Longspur. 



27. Under parts white ; second outer tail feather with little white (28) 



28. Darker and browner; back more heavily streaked, with the 

 dark centers of feathers broader than the light brown edgings 



Lapland Longspur. 



28. Lighter and more buffy; back less heavily streaked, with dark 

 centers of feathers narrower than the pale grayish buffy edg- 

 ings Alaskan Longspur. 



29. Upper parts not dark streaked ; sometimes with white ones (30) 



