Grus Americana, Whooping Crane, Swains. & Rich. F. Bor. Amer. v. ii. p. 372. Adult. Grus canadensis, Brown Crane, Swains. & Rich. F. Bor. Amer. v. ii. p. 273. Whooping Crane, Grus Americana, Nutt. Man. v. ii. p. 34. Adult. Brown Crane, Grus canadensis, Nutt. Man. v. ii. p. 38. Young. Whooping Crane, Grus Americana, Aud. Orn. Biog. v. iii. p. 202, Adult; p. 441, Young. FAMILY XXXV. CHARADRIINÆ. PLOVERS. Bill short, straight, subcylindrical, obtusely pointed; upper mandible, with its dorsal line straight for half its length, afterwards convex; nasal groove bare, extended along two-thirds of the length of the bill. Head of moderate size, rather compressed, rounded in front. Eyes large. Neck rather short; body ovate, rather full. Plumage soft, blended, somewhat compact above; wings long, pointed, with the first quill longest. Tail of moderate length, somewhat rounded, or with the middle feathers projecting, of twelve feathers. Œsophagus of moderate width; stomach roundish, compressed, very muscular, with the epithelium dense and rugous; intestine rather long, and of moderate width; with rather long cœca. A single pair of inferior laryngeal muscles. Nest on the ground, shallow; eggs generally four, large, pyriform, spotted. Young densely covered with down, and able to walk immediately after birth. GENUS I. CHARADRIUS, Linn. PLOVER. Bill short, or as long as the head, straight, rather stout, somewhat compressed, pointed; upper mandible with the dorsal line straight, and slightly declinate for at least half its length, then bulging a little, and arched to the tip, which is rather acute, the sides flat and sloping at the base, convex towards the end, where the edges are sharp and inclinate; nasal groove extended to half the length, and bare; lower mandible with the angle rather long and narrow, the sides at the base erect and nearly flat, the dorsal line ascending and slightly convex, the edges sharp and involute towards the tip, which is narrow and rather pointed. Nostrils subbasal, linear, open, and pervious. Eyes rather large. Head of moderate size, roundish, the forehead much rounded; neck rather short; body ovate, rather full. Feet rather long, slender; tibia bare for a considerable space; tarsus rather compressed, covered all round with reticulated hexagonal scales; toes of moderate length, slender, scutellate, second shorter than fourth, first wanting or rudimentary; anterior toes broadly marginate, webbed at the base. Claws small, compressed, slightly arched, rather acute. Plumage soft, blended, the feathers broad and rounded. Wings long and pointed, the primaries tapering, the first longest; inner secondaries tapering and elongated. Tail rather short, or of moderate length, rounded, of twelve rounded feathers. Tongue tapering, grooved above; œsophagus of moderate width; proventriculus oblong; stomach roundish, very muscular, its lateral