of these birds no doubt contribute greatly to prevent the insects from escaping, after any portion of them has entered the mouth of the bird.
These birds become silent as soon as the young are hatched, but are heard again before their departure towards the end of summer. At this season, however, their cry is much less frequently heard than in spring. They leave the United States all of a sudden, about the middle of the month of August.
Caprimulgus carolinensis, Gmel. Syst. Nat. vol. i. p. 1028.—Lath. Ind. Ornith. vol. ii. p. 584.— Ch. Bonaparte, Synops. of Birds of the United States, p. 61.
Carolina Goatsucker, Lath. Synops. vol. iv. p. 592.
Chuck-will's-widow, Caprimulgus carolinensis, Wils. Amer. Omith. vol. vi. p. 95. PL. 54 fig. 2.
Adult Male. Plate LII. Fig. 1.
Bill extremely short, feeble, opening to beyond the eyes, making the mouth when open of enormous dimensions; upper mandible arched in its dorsal outline, very broad at the base, suddenly contracted towards the tip, which is compressed and rather obtuse; lower mandible a little decurved at the tip. Nostrils basal, oval, prominent, covered above by a membrane. Head disproportionately large. Eyes and ears very large. Neck short. Body rather slender. Feet very short; tarsus partly feathered, anteriorly scutellate below; fore toes three, connected to the second joint by membranes, scutellate above; claws depressed, arched, that of the middle toe with the inner edge expanded and pectinate.
Plumage blended, soft and silky, without much gloss. Upper mandible margined at the base with long, stiff bristles, extending forwards and outwards. Wings long, somewhat falcate, narrow, the second and third quills longest. Tail long, ample, even, of ten broad, rounded feathers.
Bill yellowish-brown, the tip black. Iris hazel. Feet yellowish-brown, tinged with purple. Head and back dark brown, minutely mottled with yellowish-red, and longitudinally streaked with black. Three lines of the latter colour from the upper mandible, diverging along the head. A yellowish-white line over the eye. Sides of the head and chin yellowish-red, mottled with black. Wings barred with yellowish-red and brownish-black, and minutely sprinkled with the latter colour, as are the wing-coverts, which, together with the scapulars, are largely
