Mr. Audubon, who found several of the nests of this bird in Labrador, near the coast, describes them as large for the size of the bird, and as usually placed on the ground among moss or tall grass near the stem of a creeping fir, the branches of which usually conceal it from view. Its exterior is loosely formed of dry grasses and moss, with a carefully disposed inner layer of fine grasses, circularly arranged. The lining consists of very delicate fibrous roots, with feathers of different kinds of water-fowl. In one instance he noted the down of the eider-duck. He found their eggs from the middle of June to the 5th of July. When their nest was approached, the female affected lameness, and employed all the usual arts to decoy the intruder away. They raised but one brood in a season, and about the first of September left Labrador for the south in small flocks, made up of members of one family. Their eggs measure from .92 to an inch in length, and .70 in breadth. They are oblong in shape. Their ground-color is a light bluish-white, thickly spotted with a rusty-brown, often so fully as to conceal the ground. [9] _Passerella obscura_, VERRILL, Pr. Bost. N. H. Soc. IX, Dec. 1862, 143 (Anticosti). (Type in Museum Comp. Zoöl., Cambridge.) “Size somewhat smaller than that of _P. iliaca_. Legs and wings a little shorter in proportion. Claws less elongated. Bill somewhat shorter, thicker, and less acute. Color above rufous-brown, becoming bright rufous on the rump and exposed portion of the tail, but a shade darker than in _P. iliaca_; head uniform brown, with a slight tinge of ash; feathers of the back centred with a streak of darker brown. Wings nearly the same color as the back, with no white bands; outer webs of the quills rufous, inner webs dark brown; secondary coverts rufous, with dark brown centres; primary coverts uniform brown. Beneath dull white, with the throat and breast thickly covered with elongated triangular spots and streaks of dark reddish-brown; sides streaked with rufous-brown; middle of abdomen with a few small triangular spots of dark brown; under tail-coverts brownish-white, with a few small spots of bright rufous; tibiæ dark brown. The auriculars are tinged with reddish-brown. Bristles at the base of the bill are numerous, extending over the nostrils. Tail rather long, broad, and nearly even. Third quill longest; second and fourth equal, and but slightly shorter; first intermediate between the fifth and sixth, and one fourth of an inch shorter than the third. “Length, 6.75; extent of wings, 10.75; wing, 3.35; tarsus, 1 inch.