FULMARS AND SHEARWATERS. 
Family Procellariidae. 
PACIFIC FULMAR. 
86b. Fulmarus glacialis glupischa. 18 inches. 
In markings these birds closely resemble the Gulls. Bill is 
shorter and stouter, strongly hooked at the tip, and with the 
nostrils opening out of a single tube, prominently located on 
top of the bill. Their flight is graceful like that of the Gulls. 
Nest. —On the islands and cliffs of the mainland of the North¬ 
ern Pacific they nest in large colonies. Every crevice in the 
rocks having its tenant. They lay but a single white egg on 
the bare rocks (2.90 x 2.00). 
Range. —Northern Pacific, southerly to Lower California. 
SLENDER-BILLED FULMAR. 
87. Priocella glacialoides. 18 inches. 
This species has a paler mantle than others of the family, 
and the primaries are black. 
Range. —Southern seas, appearing on the Pacific coast of the 
United States in the summer. They probably breed in the far 
south during our winter, although we have no definite record 
relative to their nesting habits. 
O 
