TUBE-NOSED SWIMMERS. 49 



22. CORY SHEARWATER. 



Differs from Greater Shearwater in be- 

 ing lighterabove, in fact, rather ashy brown, 

 the bill is yellowish and the ashy marking 

 above extend down on the sides of neck and 

 throat without any sharp line of demarcation 

 between it and the white below, fig. 34. 



The Cory Shearwater is an irregular vis- 

 itor to our coast, but is common some years. 

 From whence it comes or whither it goes is 

 a mystery, for its breeding place and entire 

 range is unknown. Occurs off the coast of 

 Massachusetts and on Long Island Sound in 

 Sept. and Oct. 



23. AUDUBON SHEARWATER. 



Smaller than the Greater Shearwater, 12, 

 but generally similar in coloration. There 

 is an ashy patch in front of the folded wing, 

 and a dusky space beneath the eye; otherwise 

 the line of demarcation between the sooty 

 brown above and white beneath is sharply 

 defined, fig. 34*. Bill, rather slender and blue- 

 black, fig. 32. 



