PERISOREUS. 359 



indistinctly (though sometimes broadly) tipped with whitish ; lower parts plain 

 grayish or whitish. Young, entirely plain dusky, varying from a slaty to a brown- 

 ish tint. Nest in coniferous trees, bulky, composed of dried twigs, shreds of bark, 

 etc., lined with softer materials. Eggs 2-5, with pale ground-color (often dull 

 whitish) speckled with brown and purplish gray. 



a 1 . Feathers of back without distinct paler shaft-streaks ; breast, belly, sides, and 



flanks grayish, much darker than throat and chest. 



b 1 . Adult with whole occiput and hinder part of crown (sometimes whole 

 crown) blackish or dusky grayish, this touching (sometimes surround- 

 ing) the eye ; young with top of head uniform dusky, like back. 

 c l . Blackish of hood scarcely bordering eye underneath ; occiput dull sooty 

 blackish, or dark sooty slate, the white on forehead usually extend- 

 ing back to or beyond posterior border of eye. 



Breast, etc., light brownish gray, always much paler than back. 

 Young, uniform sooty slate, with nasal tufts, lores, and chin 

 deep black ; a whitish rictal stripe (usually indistinct). Length 

 11.00-12.10, wing 5.60-5.90 (5.75), tail 5.65-6.35 (6.00), culmen 

 .95-1.08 (1.00), tarsus 1.33-1.47 (1.39). Eggs 1.12 X .81, dull 

 white, drab-white, or very pale grayish buff, speckled with hair- 

 brown or grayish brown, and lilac-gray. Hab. Northern New 

 England and New York, northern Michigan and Minnesota, 

 northward to Hudson's Bay and interior arctic regions. 



484. P. canadensis (LINN.). Canada Jay. 



c 1 . Blackish of hood broadly bordering eye all round ; occiput deeper black, 

 the white (or pale smoky) of forehead usually not reaching as far 

 back as posterior border of eye. 



d l . Colors extremely dark, the breast, etc. (except in much worn or 

 faded plumage), deep slate-gray (sometimes nearly as dark as 

 back), almost abruptly contrasted against white of chest; fore- 

 head usually pure white, or but faintly tinged with smoky yel- 

 lowish. Young, uniform deep slate-color, without sooty tinge, 

 the nasal tufts and lores deep black, the throat nearly black ; 

 an indistinct grayish rictal stripe. Length about 11.00-12.00, 

 wing 5.30-5.80 (5.53), tail 5.30-5.85 (5.64), culmen .95-1.09 

 (1.02), tarsus 1.35-1.47 (1.40). Hab. Coast-region of Labrador 

 (interior also ?), north to Hudson's Strait. 



484c. P. canadensis nigricapillus EIDGW. Labrador Jay. 

 d*. Colors almost equally dark, but more dingy, the white of forehead 

 usually much obscured by a smoky brownish or yellowish wash, 

 and gray of breast, etc., more or less tinged with same. Young, 

 uniform brownish slate-color, the lores, nasal plumes, and orbits 

 blackish ; an indistinct rictal stripe of light grayish brown, or 

 smoky gray (sometimes whitish). Length about 10.00-12.00, 

 wing 5.20-5.75 (5.54), tail 5.20-6.00 (5.66), culmen .94-1.08 



