SPIEARWATERS AND PETRELS. 87 



KEY TO THE SPECIES. 



I. Wins: over 10-50. 



■"& 



A. Under parts dusky 94. Sooty Shearwater. 



M. Under parts white. 



a. Bill under 1-50 98. Black-capped Petrel. 



b. Bill over 1-50. 



b^. Under tail-coverts white 88. Cory's Shearwater. 



62. Under tail-coverts grayish brown . . 89. Greater Shearwater. 

 II. Wing under 10-50. 

 A. Wing over 7-25. 



a. Depth of bill at base over -50. . 86. Fulmar. 86a. Lesser Fulmar. 



b. Depth of bill at base under -50. 



Ji. Upper parts bluish gray 99. Scaled Petrel. 



^2. Upper parts sooty black 92. Audubon's Shearwater, 



£. Wing under 7-25. 



a. Upper tail-coverts more or less white. 



ai. Tail forked 106. Leach's Petrel. 



b^. Tail square. 



62. Webs of feet marked with yellow; upper tail-coverts not tipped 

 with black 109. Wilson's Petrel. 



63. Webs of feet without yellow ; tail-coverts tipped with black. 



104. Stormy Petrel. 



b. Upper tail-coverts grayish or brownish. 



61. Entire under parts brownish 101. Bulwer's Petrel. 



62. Breast grayish 110. White-bellied Petrel. 



63. Entire under parts white 111. White-faced Petrel. 



86. Fulmarus glacialis {Linn.). Fulmar; Noddy' (see Fig. 9, 6), 

 Light phase. — Head, neck, and under parts white or whitish ; back, wings, 

 and tail slaty gray. Dark phase. — Entire plumage nearly uniform dark, slaty 

 gray. L., 19-00 ; W., 13-04 ; B:, 1-50 ; depth of B. at base, -75 (Ridgw.). 



Range. — North Atlantic ; south in winter on the American coast to Massa- 

 chusetts ; accidental in northern New Jersey. 



Nest., on the ledges of rocky clift's. Egg., one, dull white, 2-85 x 2-01. 



" The Fulmar is a constant attendant on whalers, sealers, etc. — who 

 know it as the ' Mollimoke ' — in order to obtain fatty substances and 

 animal offal ; but I never saw it take any while on the wing, and it 

 always settles on the water to feed, like an Albatross. The pinions 

 are often flapped slowly in an owl-like manner, but in scnddinp: they 

 are held very straight — a peculiarity by which it may easily be distin- 

 guished from a Gull at a distance " (Saunders). 



86a. F. g. minor Lvjaerb. Lesser Fulmar; Noddy. "Similar in 

 color to F. glacialis., but much smaller. W., 11-80-12-00; B., 1-30-1*38; 

 depth of B. at base, -60--70." 



Range. — " North Atlantic, south on American side to coast of New Eng- 

 land" (kidgw.). 



