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. Vest in coniferous trees, bulky, composed of dried twigs, shreds of bark, 
etc., lined with softer materials. Hggs 2-5, with pale ground-color (often dull 
whitish) speckled with brown and purplish gray. 
a. Feathers of back without distinct paler shaft-streaks; breast, belly, sides, and 
flanks grayish, much darker than throat and chest. 
b. 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. 
ce’. 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). Hggs 1.16 x .82, 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 (Liny.). Canada Jay. 
c. 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', 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 Ripew. 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 
