Crows are distinguished from ravens by their smaller size, and by the feathers of the neck blending with those of the body, while on the ravens, the neck feathers are pointed and distinct. The Crow family is widely distributed, but Crows, as properly understood, are mainly inhabitants of the north temperate zone. They are intelligent, wary birds (when persecuted), and are practically omnivorous, feeding upon fish, fowl, eggs, snakes, frogs, crabs, shell-fish, grubs, fruits, seeds and berries. The common Crow of North America is particularly abundant in the Eastern United States, and is looked upon as the inveterate foe of the farmer on account of the amount of injury he inflicts on growing crops, and especially upon corn. There is, however, a credit side to the account in the destruction of grubs; but as the Crow is by nature such a pilferer, he must be regarded as harmful in many ways. In the fall and winter these glossy birds assemble by thousands in great roosts, or rookeries; one of these roosts on the Potomac above Washington has been estimated to harbor 40,000 Crows, while others are still larger. In the gray of the morning the birds leave in clamorous crowds for their feeding-grounds, often many miles away, and in the afternoon may be seen winging their way homeward in long lines, high above the earth in fair weather, low down in foul. The eastern fish crow, frequently found in company with the others, is a smaller bird, and can readily be distinguished by its hoarse caw. The Carrion Crow of Europe and Asia closely resembles the North American Crow in form, size and habits, but is perhaps a little more destructive, attacking and killing lambs, or even weakly sheep. The Hooded Crow, found in northern and eastern Europe and in many parts of Asia, is gray, with black head, throat, wings and tail. The Gray-necked Crow of India is a small but bold and mischievous species, often stealing the very food from the table. On the other hand, it does much good as a scavenger, forming an able adjunct to the vultures in this respect. An interesting story is told of a Crow of this species which had been tamed and petted until it behaved much as would a spoiled child. “Old Crusty,” as he was called, would actually take the food away from the dog while he was eating, not by open encounter, for that would have deprived him of his fun. But he would tease the poor canine until he barked from vexation, then snatch up the prey and triumphantly bear it off to a neighboring tree, where he ate it at his leisure, while the dog stood looking at him and uselessly venting his rage in loud, threatening barks.