Part 160

Cinereous Puffin, Nutt. Man. v. ii. p. 334.

Wandering Shearwater, Puffinus cinereus, Aud. Orn. Biog. v. iii. p. 555.

465. 2. Puffinus Anglorum, Ray. Manks Shearwater.

Plate CCXCV.

Bill deep greenish-black; inner and middle of outer side of tibia dull orange, the rest greenish-black, as are the fourth toe and outer side of the third, the inner side of the latter and the whole of the second dull orange, webs pale yellow; upper parts brownish-black, lower white.

Adult, 15, 32.

Not uncommon off the coast of Maine during summer. Breeds on Sable Island, off Nova Scotia. Ranges, at times, to great distances seaward.

Puffinus anglorum, Bonap. Syn. p. 371.

Shearwater Petrel, Nutt. Man. v. ii. p. 336.

Manks Shearwater, Puffinus anglorum, Aud. Orn. Biog. v. iii. p. 604.

466. 3. Puffinus obscurus, Lath. Dusky Shearwater.

Plate CCXCIX. Male.

Bill light blue, the tips black; outside of tarsus and toes indigo-black, inside and webs pale yellowish flesh-colour; upper parts sooty-black, lower pure white.

Male, 11, 26.

Abundant during summer in the Gulf of Mexico, and off the coast eastward to Georgia. Some wander as far as Long Island.

Puffinus obscurus, Bonap. Syn. p. 371.

Dusky Petrel, Nutt. Man. v. ii. p. 337.

Dusky Petrel, Puffinus obscurus, Aud. Orn. Biog. v. iii. p. 620.

GENUS V. THALASSIDROMA, Vigors. PETREL.

Bill shorter than the head, slender, as high as broad at the base, extremely compressed at the end; upper mandible with the nostrils dorsal forming a tube on its ridge at the base, on which the dorsal line is concave and ascending, then abrupt, afterwards, for a short space, straight, and lastly decurved, the sides separated by a groove, convex, the edges sharp and inflected, the tip decurved, slender, acute; lower mandible with the angle rather long, narrow, and pointed, the dorsal line beyond it decurved, the sides erect, the edges sharp, the tip decurved, acute. Head of moderate size, rounded above; neck short; body rather slender. Feet rather long, slender; tibia bare at its lower part; tarsus slender, reticulate; hind toe minute, with a conical deflected claw; anterior toes of moderate length, slender, scutellate, webbed, the third and fourth about equal. Claws slender, arched, compressed, acute. Plumage very soft and blended, the feathers distinct only on the wings, which are very long, with the primaries a little incurved toward the end, the second longest, the first and fourth about equal; tail emarginate or even, of twelve feathers. Tongue much flattened, tapering to a horny point; œsophagus wide, within the thorax enormously distended, and with the proventriculus forming an ovate sac, which is recurved; stomach very small; intestine short, of moderate width; cœca small; cloaca globular.

467. 1. Thalassidroma Leachii, Temm. Leach's Petrel.--Fork-tailed Petrel.

Plate CCLX. Male and Female.

Tail forked; bill and feet black; plumage dark greyish-brown; quills and tail brownish-black; smaller wing-coverts and inner secondaries light greyish-brown; rump, sides of abdomen, and outer lower tail-coverts white; upper tail-coverts also white, but with a terminal black band.

Male, 8, 18-1/2.

Common on the Banks of Newfoundland, and at times off the coast of Massachusetts, Maine, and Nova Scotia. Breeds on the shores of Baffin's Bay.

Thalassidroma Leachii, Bonap. Syn. p. 367.

Fork-tailed Stormy Petrel, Thalassidroma Leachii, Nutt. Man. v. ii. p. 326.

Forked-tailed Petrel, Thalassidroma Leachii, Aud. Orn. Biog. v. iii. p. 434.