This is the bird that is well known to hunters of "big game" by various names such as "Whiskey Jack", "Moose Bird", "Camp Robber", etc. During the winter months, owing to the scarcity of food, their thieving propensities are greatly enhanced and they remove everything from the camps, which looks as though it might be edible. Birds of this genus are smoky gray on the back and lighter below, shading to white on the throat; the forehead and part of the crown is white and the nape blackish. Their nests are placed at low elevations in bushes or fir trees, and are usually very different from any of the preceding Jays' nests. They are nearly as high as wide, and are made of small twigs, moss, catkins, weeds and feathers making a soft spongy mass which is placed in an upright crotch. The eggs are a yellowish gray color spotted and blotched with brown and grayish. Size 1.15 × .80. Data.--Innisfail, Alberta, March 12, 1903. Nest a beautiful structure of twigs, moss and feathers in a willow bush, 6 feet from the ground. The thermometer registered 32 below zero the day the eggs were taken. Collector, W. Blackwood. [Illustration 310: Green Jay.] [Illustration: Grayish buff.] [Illustration: Grayish.] [Illustration: Canada Jay.] [Illustration: left hand margin.] Page 309 484a. ROCKY MOUNTAIN JAY. _Perisoreus canadensis capitalis._ Range.--Rocky Mountains from Montana to Arizona. This variety has the whole crown white and only a small amount of blackish on the nape. Its nesting habits and eggs are precisely like those of the last. 484b. ALASKA JAY. _Perisoreus canadensis fumifrons._ Range.--Alaska. A very similar bird to the Canada Jay but with the forehead yellowish or duller; the nests and eggs are like those of the others of the genus. 484c. LABRADOR JAY. _Perisoreus canadensis nigricapillus._ Range.--Labrador. This is a darker variety of the Canada Jay. Its eggs cannot be distinguished from those of any of the others of the genus. 485. Oregon Jay. _Perisoreus obscurus obscurus._ Range.--Mountain ranges from northern California to British Columbia. These birds are very similar to _canadensis_ but have the whole underparts white. Like the Canada Jays they appear to be wholly fearless and pay little or no attention to the presence of mankind. Their nesting habits and eggs are the same as the preceding except that they have generally been found nesting near the tops of tall fir trees. Size of eggs, 1.05 × .80. [Illustration 311: NEST AND EGGS OF CANADA JAY SHOWING CONSTRUCTION.] [Illustration right hand margin.] Page 310 [Illustration 312: YOUNG CROWS] Page 311 485a. GRAY JAY. _Perisoreus obscurus griseus._ Range.--British Columbia to northern California, east of the coast ranges. This bird is said to be larger and grayer than the preceding. 486. RAVEN. _Corvus corax sinuatus._ Range.--North America west of the Rockies and from British Columbia southward.