The Raven is like a very large Crow, length 24 inches, but has the feathers on the neck lengthened and stiffened. Their habits are similar to those of the Crow, but more dignified, and they remain mated for life. Besides grasshoppers and worms, they feed largely upon animal matter such as lizards, shell fish, frogs, eggs and young of birds, and carrion. They nest on ledges of high inaccessible cliffs or the tops of tall trees, making large nests of sticks lined with smaller ones and hair or wool; the eggs are laid in April or May, number from four to seven, and are light greenish in color, blotched with umber and drab. Size 1.95 × 1.25. 486a. NORTHERN RAVEN. _Corvus corax principalis._ Range.--Eastern North America chiefly north of the United States and northwest to Alaska; south on some of the higher ranges to Georgia. This variety is like the last but is larger. They are not nearly as abundant as the western form and are very rare within the United States. A few pairs still breed on some of the rocky islands off the coast of Maine; more off New Brunswick and Newfoundland, and they are quite common on the cliffs of Labrador and Alaska. Their nesting habits and eggs are like those of the last. 487. WHITE-NECKED RAVEN. _Corvus cryptoleucus._ Range.--Mexico and the border of the United States; north to eastern Kansas. This small Raven is of about the size of the Crow, and has the bases of the neck feathers white. They are very abundant in some localities, especially in southern Arizona. Their food consists chiefly of animal matter, the same as the large Ravens, and they are not nearly as shy, frequently feeding in camps upon refuse which is thrown out to them. They build at low elevations in any tree, but preferably in mesquites, making their nests of sticks and lining them with hair, leaves, bark, wool or anything soft. During June they lay from four to six pale bluish green eggs, generally sparingly spotted or scratched with dark brown and drab. Size 1.75 × 1.20. [Illustration 313: Pale greenish white.] [Illustration: Pale bluish green.] [Illustration right hand margin.] Page 312 488. CROW. _Corvus brachyrhynchos brachyrhynchos._ Range.--Whole of North America south of the Arctic Circle; most abundant in eastern United States; rare in many localities in the west.