Dr. Cooper speaks of it as much more gregarious and familiar than the common Crow, but otherwise resembling that bird in habits, being very sagacious, feeding upon almost everything animal and vegetable, differing rather in the tone than in the character of its cries. Its chief dependence for food being on the sea, it is generally found along the beach, devouring dead fish and other objects thrown up by the waves. At high tide the birds leave the shore and resort to dwellings near the sea, where they devour the offal and any refuse, vegetable or animal. As soon as the tide changes they are sure to notice it and to return to their favorite feeding-ground. They are very troublesome to the Indians, stealing their fish exposed for drying, and other articles of food. From some superstitious awe of them the Indians never molest these birds, but set their children to watch and drive them away. They build in trees near the shore, and the young are fledged in May. In the southern half of California, Dr. Cooper states, these birds are rarely seen near the sea, preferring inland districts, and only occasionally coming to the shores of the bays to feed. During most of the year they associate in large flocks, feeding in company, and are gregarious even in the breeding-season, building in close proximity to one another. Frequently several nests may be found on the same tree. In this respect they are very unlike the eastern species, which never permit another pair near their nest. These birds were found by Dr. Cooper breeding as far south as San Diego, where they selected for their breeding-places the groves of evergreen oaks growing in ravines. Their nests were from twelve to forty feet from the ground. In the north they generally build in spruces. He describes their nests as strongly built of sticks, coarse on the outside, but finer on the inside, where they are mingled with roots, grasses, moss, horse-hair, etc., to form a soft lining. The eggs, four in number, have a ground-color of a dark shade of green, thickly marked with dark brown and olive. He gives their average measurement as 1.60 by 1.10 inches. At San Diego they are laid about April 15. Where unmolested, these birds have not yet become so shy as in the older districts, but they soon learn to apprehend the danger of a gun, and to evince the cunning characteristics of their tribe. They have not, as yet, manifested any disposition to disturb the growing crops, and the small depredations they commit are far more than counterbalanced by their destruction of immense numbers of grubs, grasshoppers, and other injurious insects. They obtain a large supply of food around the cattle-ranches. In northern California they feed largely on fish, and on the Columbia on clams and oysters.