TUBE-NOSED SWIMMERS 
86b. Pacific Fulmar. Fulmarus glaci- 
alis glupischa. 
This sub-species of the preceding, has a darker 
mantle than the common Fulmar; it is found on 
the northern Pacific coasts where it breeds on 
the high rocky cliffs, the same as it’s eastern 
relative. They nest in large colonies, every 
crevice in the rocks having its tenant. Their 
flight is graceful like that of the Gulls, which 
they closely resemble. They lay but a single 
white egg, the average dimensions of which are 
slightly smaller than those of the common Ful- 
mar. Data. — Copper Is., Alaska. May 14, 1889. 
Egg laid in a crevice among the cliffs. 
86.1. Rodger’s Fulmar. Fulmarus rodgers. 
Range. — North Pacific, breeding in large num- 
bers on some of the islands in Bering Sea; south 
to California in winter. Very similar to the two 
preceding species except that the back is mixed 
with whitish, it is not believed to have a dark 
phase. Their breeding habits and eggs do not 
differ from the common Fulmar. The eggs are 
laid on the rocky cliffs during June. 
Pacific Fulmar 
Slender-billed Fulmar 
87. Slender-billed Fulmar. Priocella glacialoides. 
Range. — Southern seas, appearing on the Pacific coast of the United States 
in the summer. This species has a paler mantle than the others of the family, 
and the primaries are black. The make-up and plumage of the whole bird is 
more like that of the Gulls than any of the others. They probably breed in 
the far south during our winter, although we have no definite data relative 
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