530 NORTH AMK.IIICAN lilUI^S. 



tiiil. Vii'sl c|iiill IdiiucsI. IIiikI .stri|)iM|. linck sliciikcd. Wliito 

 boncatli. A wliilc Mulcli on llu' ciiil ol' the liiil-lrallicrs. 

 Zonotrichia. Tiiil iiiiKlciuti'ly jj;nuliiiitiMl. Wiii^'^ nuMliTatc, iilioiu us 

 loiij,^ iis llif tail, rcacliiii;,' almiil over tli(> liasil loilPlli ol' llic tail; lilsl 

 iiuill li'ss than the si'coiid tn lointli. Feel, lai;;i'. Head siriiicd with 

 Mack niid white, or with lii't)\vii and dchrai't'oiis. Hack .sticakcd. 

 Junco. Tail very ncailv c(|nal to the wings, slightly cinarginatc, and 

 decidedly roundi.'d. Outer toe lalher longer than inner, reaching the 

 middle claw. Xo streaks anywhci'e exce|tl in yonng ; l)laek or ash- 

 color ahove ; belly white; with or without a rufous back and sides. 

 Outer tail-leathers while. 



Foospiza. Tail U'nglhcued, slightly graduated; tlio leathers unusually 

 broad to the end. Itill slender. Wings about as long as the tail, reach- 

 ing lint little beyond its external base. Tertials bi'oad, and, with the 

 secondaries, rather lengthened. Heconil to litlli f|nills nearly e<inal, and 

 longest. Hill dark lead-color. Tail black. rnilbrni ashy-brown 

 aliovo; white beneath. Sides of head \\ilh stripes of black and white. 

 h. Tail decidedly forkcil ; a little shorter than the wing, .souietinies a little 

 longer. 



Spizella. Size rather small. AViugs long. Lower mandible largest, 

 rniforni beneath, or with a jx'ctoi'al spot or the chin black. 

 C Tail leugtliened and graduated ; ilecidedly longer than the wings, which are 

 very short, seari'ely extending beyond the external base ol' the tail. Keet reach- 

 ing l)iit little beyond the middle of the tail. Species all streaked above; streakeil 

 or nearly nnicolor beneath. \o wliiti' on wings or tail. Outer lateral toe llie 

 longer, rirst ipiill not the shortest of thi' ])iimarios. (Melospizeae.) 



Melospiza. ("ulnicn and connnissurc nearly straight. Claws stout ; 

 hinder one as large as iis digit. Tail-feathers ratln'r broad. Body 

 streaked beiiealh. 



Peucaea. Culmcn and connnissurc cnived. Claws weak ; hinder one 

 not nnicli cuiveil, decidedly shorter than its digit. Tail-feathers narrow. 

 Without .streaks beneath, oxce|)ting a mu'row maxillary stripe. 

 D. Tail rather .slioi't, and much graduated ; longer than the wings; the midrib 

 more median. Culmcn curvi'd. Tarsus considerably longer than middle too. 

 Outer toe longer. Jhit, little dilference in the length of the ([uills; the onler 

 ones much Duinleil; even the second tpiill is shorter than any other primary 

 except the lirst. 



Embernagra. Coloi' olive-green above. 



Gfais CENTRONYX, 15a Hit). 



Ccntroivj.v, B.mud, Birds X. Am. IS'iS, 44ii. (Type, Kmhi'ciyi Immli, Xvw.) 



(iKN. CiiAit. IJill elongated; the lowei' Uiandilile .smaller: outlines nearly straight. 

 Tarsus lengthened, considerably exceeding the mitldle toe. Latcr.il toes iMpial. not reach- 

 ing the liaso of the middle elaw. Hind toe veiy largi'; the claw rather longer than its 

 digit. an<l in its elongation resembling Plcr/rii/iJiiiiii'n, but nior<' curved: the digit and claw 

 togetln-r rather longer than the middle toe and elaw. Wings very long, I'cachiug beyond 

 the middle of the tail, and Ijoyond the end of the I'ovcils. Tertials shorter than the 

 piiinaries, and but little longer than the secondaries. T.iil short, much less than from the 

 carpal joint to end of .secondaries; little more than two thirds the entire' wing. It is 



