AUKS, MURRICS, AND PUFFINS. 63

Similar in eharaeter. . . . (‘onside'able t'oree is exercised in diving, and the wings are used l'or propulsion under water" (Saunders).

31. Uria. lomvia (Li/111.). Bltt‘xxn‘n’s Mrmtri. .111. in 1111111111014 I'pper parts, wings. and tail sooty bhu-lt. t'oreneelt somewhat browner; tips of steondaries, breast, 11nd belly white; base ot' the upper 1111111dible greenish, rounded outward beyond the edge ot' the lower mandible. L.,l'1"50; \\'., 8'41); T1111, 1'30; B1, 1‘25; depth (11' B. at nostril.

11'1111111-1's.—.\11u11s are to be distinguished trom adults of F. troile hr the darke1 eolor 01 the head whith in lomcia is darker than the tl1r1,oit b1 the size of the bill and thickening of its eutting edge at the base. \\ inte1 and inunature birds 1:111 be distinguished from those 01' l'. troile only by the size 01' the bill, which, as the 111e11sureme11ts show, is longer in that species.

Ram/1" —" L‘oasts‘ and islands ot' the North Atlantic and eastern Art-tic Dee 1110 (A t). l .). Breeds from the Magdalen Islands northward; in win— ter migrates as 1111‘ south as New Jersey.

Long,r Island, irregular \V. V. Sing: Sing. A. V.

Nos-ts in eonnnunities, side by side on the bare ledges ot' rocky clitiis. Egg, one, not distinguishable from that 01' l'. trade.

“ During the winter it lives on the open sea. and in the breeding season assembles in large floelts 011 bold cliffs 11nd rocky headlands. It is an expert diver using wines and feet to get under water and to swim throutrh it" (Chambet lain).

32. Alca. torda. lion llama—11111121) \l'K: TIVKER. 11111.17; sum— mon—[ppm pz'nts. w ings. and tail sootV black; t'oreneek somewhat b1o\\11tr' tips of the set ond1u1es, :1 line trom the 1_\ e to the bill, breast, and btlly \\ hite; bill black, erossed by a white hand. .11]. 1'11 11'influx—Similar to ad. in the summer, but with the sides and front (11' the neek white. 1/11.#Si111il111' to ad. in winter. but with the bill smaller and without the white bar. L., 10‘50; VV "".10;T-1r 1‘2‘1')‘ B, 1‘25

'Ifang/o.— " (‘ masts 11nd islands of the \orth .\tl antie' (10.1"). Breeds from the Magdalen Islands northward; in winter 111ig1at1-s southward regu- larly to Long Island and rarely to Virginia and North Carolina.

Long Island. irregular W. V.

Ill-net, in the ereviees 11nd fissures ot' elitl's and roelty plaees. Fay/.0. one to two, pale bluish white or huti'y,tl1iekl)' spotted and spet'kled with ehoeolate markings most numerous and sometimes eontluent at the larger end, :roo x 1'90.

“When brooding. it erouehes along. not across. the egg. its mate often Standing near; and both sexes ineuhate, though the male may be seen bringing food to the sitting female. . . . The young flutter from the roeks to the sea. or are taken by the neek and e- -'1r1ied down by 1119 parents. They 111" at first Very loath to follow the old bird in (Ilt'ing‘ and remain crying: plaintirely on the. surface of the vater. The food consists of small fish. whieh are *arried diagonally in the hill --uot at right angles, as by the Pullin—and crustaceans. The Razor-