Biological Papers. 253 



100; Erin's Bride, 100; Erin islet, 10. Total number of Western gulls ap- 

 proximates 1832, + 1000 on the Strait of Fuca side; total, 2832. 



Description: Mantle for the most part dark slaty gray. Length of 

 bird 27. 



Remarks to No. 44 above apply to this species also. 



51. Larus argentatus Brunn. Herring gull. A migrant. 



Description: Mantle a delicate pearl gray; red spot on terminal end of 

 lower mandible, not otherwise spotted. Length of bird about 24. 



52. Larus veg« Palmen. Vega gull. A very rare migrant. 



Description: Mantle a deep pearl, shading into a plumbeous gray. Size 

 same as No. 51 above. 



53. Larus californicus Lawr. California gull. An occasional stray mi- 



grant. 



Description: Feet greenish; bill yellow, lower mandible red and black 

 spotted near the end; mantle clear bluish gray. Length of bird about 22. 



54. Larus delawarensis Ord. Ring-billed gull. Only one member of this 



species was seen: 



Description: Color of mantle same as No. 44 above; that is, light pearl 

 gray. The greenish-yellow bill is crossed near the end by a conspicuous 

 black band; end of bill is tipped with yellow. Length of bird about 20. 



55. Larus brachyrhynchus Rich. Short-billed gull A rare migrant. 



Description: Color of mantle same as last above; bill greenish, yellow 

 tipped, short. Length of bird about 18. 



56. Larus canus Linn. Mew gull. A migrant. 



Description: Similar to No. 55 above, but with outer quills mainly black. 



57. Larus heermanni Cass. Hermann gull. A migrant. 



Description: Under parts dark gray; tip of tail, upper neck and head 

 white; back sooty gray, bill bright red. Length of bird about 20. 



60. Larus Philadelphia Ord. Bonapart gull. Migratory. 



Descrition: Upper parts delicate pearl gray; head and bill black; band 

 across end of tail blackish. Length of bird about 14. 



Family Procellariid^: Fulmars and Shearwaters. 



Genus Fulmarus. 



866. Fulmarus glacialis glupischa Stejn. Pacific fulmar. A migrant. 



Description: Bill stout, short; not as deep as wide at base; possesses 

 nasal tubes extending about half the length of the bill; tip of bill and open- 

 ing to nasal tubes yellow; under part of body bluish gray; rest of body, neck 

 and head white. Length of bird about 19. 



86.1, Fulmarus rodgersi Cass. Ridger's fulmar. A rare migrant. 



Description: This bird is similar to the Pacific fulmar above, except that 

 its mantle is very much darker. 



Genus Puffinus. 



93. Puffinus opisthomelas Cous. Black-vented shearwater. A migrant. 



95. Puflfinus griseus Gmel. Dark-bodied shearwater. A migrant; rare. 



Description: As is indicated by the name, the entire plumage of this bird 

 is sooty gray to darker, as well as its feet and bill, the exception being its 

 white under-wing coverts, which are also mottled at the tips. 



