82 University of California Publications in Zoology [Vol. 10 



vicinity of our camp, loaded with fruit at this time, and during 

 the last two weeks in September they were filled from morning 

 to night with garrulous, quarreling flocks or robins. 



Twenty-six specimens were collected (nos. 16629-16654), 

 eighteen summer adults, seven in juveual plumage, and one 

 young male molting into first winter plumage. The series of 

 robins now at hand from the northwest coast region emphatically 

 justifies the recognition of the race caurinus (see Grinned, 1909, 

 p. 241). There are fifty specimens in the Museum collection, 

 both in adult and juvenal plumage, and in neither stage is it to 

 be confused with /'. m. propinquus, to the synonomy of which 

 the name caurinus is at present relegated (see Fifteenth Supple- 

 ment A. <). U. Check-List, 1909, p. 302). The dark coloration of 

 t e coast race distinguishes it at once, and this is quite as 

 apparent in the juvenals as in the adults. There are at hand 

 comparable series of young birds from Vancouver Island and 

 from the Warner Mountains, California, and the difference in 

 the general tone of coloration, both above and below, is quite 

 noticeable. The latter series is assumed to be representative of 

 propinquus; the type locality of the subspecies is Laramie Peak, 

 Wyoming. 



Ixoreus naevius naevius I Gmelin ) 

 Varied Thrush 

 Not observed on the east coast during April and May. First 

 met with at the upper end of the Beaver Creek Valley, about the 

 center of the island, where they were fairly common and breed- 

 ing. Full-grown young were flying about early in June, and 

 became more numerous toward the end of the month. At the 

 head of China Creek, in July, we found the varied thrush one of 

 the very few species of birds that seemed at home in the dense 

 forests of this region. They were by no means common, but were 

 conspicuous through the absence of nearly all other species. 

 Pairs of birds were encountered at intervals, extremely solicitous 

 for the young, which at this altitude were hardly able to fly at a 

 time when broods hatched in the lower valleys were caring for 

 themselves. Full-grown juvenals were observed in the willow 

 thickets of the open basins, and it seemed to me that these had 



