35. Megalestris skua. 22 inches.

These large birds are the most powerful ana audacious pirates among the sea fowl of northern waters. Their whole form is indicative of strength; form robust, feet strong, and bill large, powerful and hooked. Their plumage is of a nearly uniform blackish-brown, with white shafts to the wing feathers and a white patch at the base of the primaries.

Nest. - They do not nest in large colonies, only a single or a few pairs breeding in the same locality. Their nests are hollows in the ground, a short distance back from the rocky shores. The two eggs that they lay are olive brown, spotted with blackish (2.75 xl.80).

Range. - North Atlantic coasts, chiefly on the Old World side, breeding from the Shetland Islands and possibly Greenland, northwards. They are only rarely found on our coasts even in winter, but have been taken as far south as New York.