24(> 



KKY TO THE HIKDS OF EASTERN NORTH AMERICA. 



Crown, brown, like back; throat and underparts, pale brown; whitish on 

 bellj-; breast, usually with indistinct streaks; back, brown, without streaks. 



Indigo Bird, 

 indigo Bunting. 



Passerina cyanea (ffmnlr). 

 See No. 44fi. 



Crown, black, with white stripe in centre; stripe over eye, wliite; usually 



inore or less yellow iu frout of eye; throat, white; breast, grayish; carpal 



joint (bend of win<?), pale yellow ; back, streaked. 



White=throated Sparrow. 



Zonotrichia aJhiroUix. 



See No. 423. 



Crown, black, with white stripe in centre; no distinct white patch on throat; 

 carpal Joint (bend of wing), not yellow ; back, streaked. 



White=crowned Sparrow 



Znnotrichia leiicophrys. 

 See No. 422. 



Crown, brown, with grayish brown centre ; nape, gray; bill, reddish brown; 



back, streaked,- wing coverts, tipped with white. 



White-crowned Sparrow. 



Zonotrichia leticophnjs {immature] 



See No. 422. 



Crown, light chestnut brown (streaked with black in youug birds); rump, 



slaty gray; bill, black; back, streaked. Young birds in fall liave the bill 



brownish. 



Chipping Sparrow 



SpizcUa sociaUs. 



See No. 425. 



Crown, rufous brown ; rump, pale olive brown ; upper mandible, black ; 



under mandible, pale, with dark tip ; back, streaked. 



Tree Sparrow. 



Spizella m,onticohx. 



See No. 424. 



