FULMARS, SHEARWATERS, PETRELS 175 
88. Puffinus borealis Cory. Cory’s Shearwater. Ad. — Upper- 
parts ashy fuscous, wings and tail darker; sides of head and neck slightly 
lighter; underparts white, sometimes washed with grayislj on the breast; 
under wing-coverts and under tail-coverts white , the latter more or less mot- 
tled with grayish; bill yellowish. L., 2100; W., 14*00; Tar., 2*20; B., 2*10. 
Range. — Known only from off coasts of Mass., R. I., and L. I. (Aug.- 
Nov.). 
Long Island, probably regular S. R., Aug. 6.-Oct. 18. 
Nesting , unknown. 
Cory’s Shearwater is not uncommon off our middle Atlantic Coast 
from August until November, but its entire range is unknown. 
89. Puffinus gravis {O'Reilly.). Greater Shearwater. Ads . — 
Upperparts fuscous, wings and tail slightly darker; longer upper tail-coverts 
tipped with whitish; underparts white; belly more or less ashy gray; under 
tail-coverts ashy gray; bill blackish. L., 20*00; W., 12*25; Tar., 2*20; B., 1*85. 
Range. — Atlantic Ocean, from Arctic Circle s. to Cape Horn and Cape 
of Good Hope; occurs off the e. coast of N. Am. from June to November. 
Long Island, irregularly common, June-Nov. 
Nesting , unknown. 
“The long, narrow wings are set stiffly at right angles with the 
body, and the bird frequently glides half a mile at a time without 
moving them perceptibly. It usually follows a direct course, and in- 
variably skims close over the waves. I know of no other sea-bird whose 
movements are as easy and graceful. Indeed, at times, especially 
during a gale, its evolutions will compare in grace and spirit with those 
of the Mississippi or Swallow-tailed Kites” (Brewster). 
1905. Job, H. K., Wild Wings, 198 (off Mass.). 
Manx’s Shearwater {90. Puffinus puffinus) resembles Audubon’s 
Shearwater in color, but is larger. W., 8*50-9*25; B., 1*35-1*40; depth of B. 
through base, *40-*45; Tar., 1*70-1*80” (B., B., and R.). It occurs on the 
European coast of the North Atlantic and has been recorded from Greenland. 
92. Puffinus Hi er mini eri Less. Audubon’s Shearwater. Ads. — 
Upperparts, wings and tail dark, sooty, brownish black; underparts white; 
sides of the breast grayish ; a patch on the flanks and under tail-coverts sooty 
brownish black; inner side of tarsi yellowish, outer brownish; bill blackish. 
L., 12*00; W., 8*00; Tar., 1*60; B., 1*20. 
Range. — Warmer parts of the Atlantic, n. rarely to L. I.; breeds in the 
Antilles and Bahamas, but not, so far as known, on our coasts. 
Washington, A. V., two or three records but no specimens. Long Island, 
one record, Aug. 1. 
Nest, in a hole, in the rocks. Egg , 1, chalky white, 2*05 x 1*40. Date , 
Ragged Is., Bahamas, Apl. 13. 
This small Shearwater is an abundant West Indian species which 
breeds in Bermuda, the Bahamas and Antilles, and is doubtless not 
uncommon off our southern coasts. Its flight, low over the water, is 
strong and swift, five or six rapid wing-beats being followed by a short 
sail. 
It is active about its nesting-ground only at night when the constant 
repetition of its uncanny see-saw notes is an indication of its before-un- 
suspected abundance. I have found either the male or female on the 
