20S 



XoltTII AMKKK'AX \U\tU^. 



Ill colors, however, they diller eiitirely; the J*. in/(u>sfiis having,' the heatl 

 darker than tlw liody, and imiroriii (^instead of tlie c»jntrary;, ami in havinj^ 

 the k)wer i)riniarv and h)\vi'r leatliers of the greater coverls, iw well as the 

 greater part ol" the tail, hri;^ht rufoiia. 



A. Dusky nurlial hood roacliiu^' fi)r\vaitl to. or in front of the eyes; plum- 

 beous-! •lack. 



iJorxnl fenthers tnlh trhite ahnftn in old and iiouna. Tail- feat hers not 



diHtinrthj paler at ends. 



1. White frontal patch narrower than leiiirth of the hill ; hlendinff jrradiially 

 with the Maekish of tln' crown, (pper parts umher-hrownish. Winir, ').;'»0; 

 tail, r).4(>; bill. .00 and ..">(>. Younfj. Entirely pluinheous-brown, leathers of 

 head above bordered with paler. IJeneatli paler, whitish brown, llab. 

 Ore<,'on, Washinjrion Teritory. British Columbia, ete. . . var, ohscurus. 



Dorsal /fathers irithont trhite aha/ts in old or yonnq. Ttn'l-f'rathers 



broadlij tipped with dull irhite. 



2. White frontal pateh mnch broader than length of l.ill; aluiptly deline<l, 

 with a ennvex outline behind, apiinst the dusky of the oeeiput. I'pper 

 parts plunibeovis, with a sli<j:ht brownish cast. WiuL', 5.2') ; tail. o.St); bill, 

 .9') and ..'>5. Young. Entirely unili^rn) dark plumbeous. JIah. Canada, 

 Maine, and Labrador to the Yukon ...... var. canadensis. 



B. Dti.sky nuchal hood not rea<'hinjrr t<t the eyes, but confined to the nape; 

 bluish-i^luinbcons. 



3. White frontal patch coveriiifr whole crown, meltinff gradually into the 

 ashy of the nape; upper ])arts bluish-ashy. Wingr. 0.0(>; tail, G.(X> ; bill, 1.00 

 and .in. Yonnr/. I51nish-j)lumbeous, inelininfr to ashy-white on the crown 



and cheeks. //«ft. Rocky Mountains of I'nited States . . vav. capital is. 



In the more slender form, longer and narrower bill, and paler tints 



with a predominance of 

 the light colors, of the 

 var. capitalis, compared 

 with the tyj)ical, or 

 standard, var. lanadni' 

 fii.-i, we see the ])ecu- 

 liar impression of the 

 middle region ; while 

 in the var. ohscurus, the 

 more dusky tints, and 

 predominance of dark- 

 er colors, the influence 



Perisorens mm^en^s. ^^ ^|j^ Wcll-knOWD laW 



affecting colors in birds of the northwest coast region is seen. 



