Vol. XVIII 



I go I 



I Osgood, New North American Birds. 1 8"? 



Refnarks. — This subspecies has generally been included under 

 the name occidentalis but it seems to be more similar to motita?m 

 and its characters might be considered intermediate between 

 those of these two. They are perfectly constant throughout its 

 range, however, so that the form is easily recognizable. The 

 three western forms may be diagnosed as follows : 



C. f. inontana. — General colors grayish, light centers of feathers of 

 back and top of head broad and conspicuous; rump in contrast with back. 

 Distribution. Rocky Mountains from New Mexico north to Alaska. 



C. f. zelotes. — General colors dusky; light centers of feathers of back 

 and top of head much reduced ; rump in contrast with back. Distribution. 

 Cascade Mts. of Oregon and Sierra Nevada of California. 



C.f. occidentalis. — General colors rufescent ; rump blending with back. 

 Distribution. Pacific Coast from Sitka, Alaska, to Marin County, Cali- 

 fornia. 



Hylocichla aonalaschkae verecunda,i subsp. nov. Coast 

 Hermit Thrush. 



Type from Cumshewa Inlet, Moresby Island, Queen Charlotte Islands, 

 British Columbia. No. 166901, U. S. National Museum, Biological Survey 

 Collection. $ ad. Collected June 22, 1900, by W. H. Osgood and E. 

 Heller. Orig. No. 429. 



Distribution. — Islands and coast of British Columbia and southeastern 

 Alaska; south in winter to California. 



Characters. — Similar to Hylocichla aonalaschkcE but darker and richer 

 colored; essentially a brownish bird rather than a grayish olivaceous one. 



Color. ^Ty^c in breeding plumage: Nape and back brownish oliva- 

 ceous somewhat between the raw umber and broccoli brown of Ridgway; 

 forehead, top of head and rump slightly browner than back; upper tail- 

 coverts and tail Mars brown to burnt umber; throat and breast spotted 

 and streaked as in H. aonalaschkce, but with ground color very much more 

 buffy ; sides and flanks grayish olivaceous. 



Measurements. — Average of 4 adult females from Queen Charlotte 

 Islands, B. C, and Sitka, Alaska: Wing, 82; tail, 70; culmen, 13; tarsus, 

 28. Average of 4 adult females of H. aonalaschkce from Kadiak, Alaska: 

 Wing, 84 ; tail, 72 ; culmen, 13 ; tarsus, 28. 



Rejnarks. — Although the Hermit Thrush has not been found 

 by recent collectors on the island of Unalaska and although 



1 Verecunda = shy, modest, retiring. 



