The Black-bellied Plover is grouse-like in appearance and differs from all the other plovers in having a rudimentary hind toe. It varies greatly in the color of its plumage, both with age and with the seasons. As it stands upon the beach, decked in its summer plumage, it is a striking and beautiful bird. As winter approaches its plumage assumes a more somber hue and becomes a mixture of dark brown and gray above, while below the plumage is white with lines and spots of dark brown on the neck and breast. This bird is one of the largest of the plover species. It will run rapidly for a few yards and suddenly stopping will elevate its head and closely survey its environment. The older birds are shy, but the younger ones will quite readily respond to the call of the hunter and will usually approach his decoys. Its call notes are of two kinds. One is loud and penetrating and may be heard at a long distance. This call consists of a number of distinct notes, the second of which is accented. The notes of the other call are uttered in a low and satisfied tone as if the bird were perfectly contented. Mr. George H. Mackay found much to admire in the life of this Plover. He says: “There is something very aristocratic in the bearing of the adult birds as you watch them standing on the marsh with their heads erect, their black and white plumage strikingly defined, and their large, dark, liquid eyes ever on the alert for danger. With the yellowish green marsh grass for a background, they make a most interesting study in black and white, which, coupled with that clear penetrating note of alarm when danger is discovered, cannot fail to impress one.” When migrating it may fly alone or in flocks. At times the flocks will assume a wedge-shaped or a crescent-like form. The latter seems to be the more common form, and the ends of the crescent may point either forward or backward. The solitary birds are more frequent in the interior, while the flocks are more common near the sea coast. The slow and measured stroke of the long wings is well fitted to a continuous and prolonged flight. When tired from flying at sea it will rest on masses of seaweed or float upon the water. The Black-bellied Plover feeds largely on minute mollusks, shrimps, worms, sea insects and on various larvae found in the marshes. It also eats grasshoppers and late in the season, at the North, berries form a large part of its diet. It is at this time that its flesh is most eagerly sought by the connoisseur of game food. Food is gathered with a quick stroke and from the surface, for the bird cannot probe for its food as do the sandpipers.