THE COW BLACn BIRD. No hirds are better known in the United States than the Cow Blackbirds. They pass the winter in the Southern States, where they may be seen following the plough, and picking up worms and in- sects from the furrows. Sometimes, they visit the margins of ponds, in quest of water insects and shell-fish, and they may be seen turning over the leaves of the water-plants to which they adhere. These birds are not so injurious to the farmer as some others of the Blackbird kind. They are remarkable for the manner of rearing their young. After the eggs are laid, they (22)