356 CALIFORNIA ACADEMY OF SCIENCES. [Proc. 3D Ser. 



chestnut-throated Gavia luimne were seen March 17, 1899. 

 A female of the latter species, shot at Drake's Bay, March 

 16, 1898, is in high nuptial feather. 



Lunda cirrhata. Tufted Puffin. — May 4 several com- 

 panies were seen, and afterwards individuals, at times, to 

 the end of my stay. 



White prevails so largely on the breast and abdomen of 

 a male taken Oct. 26, 1896, that it bears a striking resem- 

 blance to a Rhinoceros Auklet. 



Cerorhinca monocerata. Rhinoceros Auklet. — Several 

 were met with during the middle of May. 



Ptychoramphus aleuticus. Cassin's Auklet. — They 

 were observed as follows: May 27, three on the water, 

 about three miles west of the buoy; June 5, several 

 bands, all told about sixty individuals, resting upon the 

 ocean three or four miles offshore; June 7, two small 

 parties flying northward. 



Cepphus columba. Pigeon Guillemot. — These Auks 

 were abundant on the water on the 3rd and 4th of May. 

 By the 6th most had disappeared. Afterwards there were 

 reenforcements, but they were transient, the species declin- 

 ing with the ebbing of the migration. Early in June all had 

 forsaken the bay and ocean in the vicinity of Point Pinos. 



An adult female from Monterey, May 27, has some white 

 feathers on the breast and abdomen, which is likewise the 

 case, in a lesser degree, in a female from Kadiak, Alaska, 

 June 28. 



Uria troile. Murre. — Very few were seen at the out- 

 set, but at the end of May and in June visitors were common 

 on some days. They were probably birds on fishing ex- 

 cursions from the rookeries above Santa Cruz, and not 

 early southbound migrants. 



In a male, June 4, the throat is almost wholly white, and 

 in another specimen, May 27, it is chiefly white, both ex- 

 amples therein having the plumage of a winter bird-of-the- 



