102 CALIFORNIA ACADEMY OF SCIENCES. 



Shearwaters were seen. They were several miles off 

 shore, and followed two parallel lines of flight about a 

 quarter of a mile apart. They came from the northward, 

 singly, in little companies, and in straggling flocks, and 

 passed rapidly down the coast. 



On the 23d there was considerable southward move- 

 ment in these two species. On the 30th no Shearwaters 

 were observed, and only several California Murres. The 

 scarcity of this latter species rendered still more prom- 

 inent its extensive movements during the preceding fort- 

 night. 



About a dozen Scoters, all seemingly female deglandi, 

 were found near the Del Monte beach at Monterey on 

 the 22d. Like the specimens procured two years ago, 

 three females that were captured were in very worn 

 plumage, and had apparently not bred, the ova in each 

 being very indistinct. During the rest of my stay this 

 species was seen at intervals. Its periods of absence 

 were apparently similar to those intervening between mi- 

 gratory movements. The Surf Scoter was found in July 

 and August, and was likewise somewhat irregular in its 

 occurrence. 



On my arrival. Western Gulls seemed to greatly out- 

 number Heermann's Gulls, but toward the end of June 

 the ranks of the latter were apparently re-enforced, for 

 they became about as numerous as the Western Gulls. 

 Adult Heermann's were very scarce in June and during 

 the early part of July, those with mottled heads and birds 

 of the year being almost the only kind met with. 



It will be observed that the conspicuous movements of 

 the latter half of June were confined to the California 

 Murre and Dark-bodied Shearwater. Incipient move- 

 ments apparently occurred in other species, and another 

 season of study, with the light I now have, would prob- 

 ably enable me to define such movements with certainty. 



