384 THE TUBE-NOSED SWIMMERS — TUBINARES. 



Nothing is known as to the habits or habitat of this form, whose specific validity 

 is not free from doubts. A single individual was procured on San Nicolas Island, in 

 California, said to be about the size of P. major. It is not referable to any other 

 known species, and Dr. Cooper has no doubts as to its validity. He thinks that its 

 habits and those of Prion -Uu r//nri,ilouI>.'sa.re very similar. He states that they associate 

 together along the coast from San Francisco south. Dr. Cooper has seen and observed 

 both species during the six warmer months of the year, but was unable to learn any- 

 thing in regard to their breeding on any part of our coast. He considers it quite 

 probable that they may breed on some of the distant Pacific islands in the winter. 

 They are generally seen in flocks several miles off the shore, flying, like the Alba- 

 tross, by rapid flappings, alternating with sailings. They congregate quickly around 

 shoals of fish, and dive to a short distance beneath the water in pursuit of them. 

 They often rest on the water, swimming very lightly, but not rapidly, and appear to 

 be the most active when the wind roughens the surface of the water, enabling them 

 to scoop up small fish from the agitated tops of the waves. Dr. Cooper further states 

 that he found this species most abundant and most approachable about San Nicolas 

 Island, where the water is shoal and small fish are numerous. The birds were 

 moulting about the first of July. 



Puffinus anglorum. 



THE MANX SHEARWATER. 



Procellaria puffinus, Betjnn. Orn. Bor. 1704, 29, sp. 119. — Lixn. S. N. I. 1766, 213. 



Procellaria anglorum, Temm. Man. II. 1820, 806. 



Puffinus anglorum, Temm. Man. IV. 1840, 509. — Nutt. Man. II. 1S34, 336. —Aim. Orn. Biog. 



III. 1835, 604 ; B. Am. VII. 1844, 214, pi. 457.— Lawe. in Baird's 15. N. Am. 1858, S34. — 



Baikd, Cat. N. Am. B. 1859, no. 649. — Ekiniiarpt, Ibis, 1861, 16 (Greenland). — Coues, Pr. 



Ac. Nat. Sci. Philad. 1864, 134 ; Key, 1872, 331 ; Check List, 1873, no. 599 ; ed. 2, 1882, no. 



834. — Ridgw. Norn. N. Am. B. 1881, no. 711. 

 Puffinus arcticus, Fabei:, Prodi'. Isl. Orn. 1822, 56, sp. 1. 



Hab. North Atlantic generally, chiefly the eastern side; rare or casual off the American 

 coast? 



Sp. Char. Adult : Above, uniform fuliginous-dusky, this color occupying the sides of the 

 head and neck. Lower parts, including the under surface of the wing and the malar region, white, 



m. 



the latter, also the sides of the neck, sometimes transversely spotted with plumbeous ; femorals 

 and outer webs of lateral lower tail-coverts, fuliginous-dusky or grayish. Bill dusky (greenish 

 black in life), the lower edge of the mandible paler ; iris dark brown ; " inner and middle of outer 



