1922] Swarth: Birds and Mammals of the Stikine Region 211 



Two specimens collected, an immature male at Great Glacier, Aug- 

 ust 11 (no. 39754), and an immature female at Sergief Island, August 

 22 (no. 39755). 



Astur atricapillus atricapillus (Wilson). Eastern Goshawk 

 Astur atricapillus striatulus Ridgway. Western Goshawk 



Goshawks doubtless occur in summer throughout the region east of 

 the coast ranges, but apparently in widely scattered pairs. We saw 

 them at various localities, single individuals encountered at consider- 

 able intervals of time. At our camp at the Junction, the end of May, 

 a recently dropped wing quill was evidence of the passage of one of 

 the birds. One was seen flying overhead at the Summit, May 29, an- 

 other at Glenora, July 7. On July 11 an adult male was shot at the 

 upper limit of timber (about 3000 feet altitude) on the mountain above 

 Doeh-da-on Creek. On August 4 an immature female was taken at 

 Flood Glacier. This bird eontaiued in its stomach the remains of a 

 red squirrel. 



The adult male collected (no. 39756) is referable to the eastern 

 subspecies, Astur atricapillus atricapillus, and is, I assume, represent- 

 ative of the form that inhabits the entire region east of the coast ranges. 

 Tbe young bird taken at Flood Glacier (no. 39757) may or may not 

 have been hatched in that immediate neighborhood. *No other gos- 

 hawks were seen there, and other species of hawks (pigeon hawks and 

 sharp-shinned hawks) were at that time beginning to appear, appar- 

 ently migrating. At any rate, this individual appears to be an ex- 

 ample of the western subspecies, A. a. striatulus. It is closely matched 

 by four young of striatulus from their nesting ground in the Warner 

 Mountains, California, and it is quite unlike a series o'f six im'matures 

 of atricapillus from the Yukon region. Compared with the Yukon 

 series the Flood Glacier bird is darker colored throughout, it is more 

 heavily marked below, and the brown edgings to the feathers dorsally 

 are broader and of a darker brown. Specimens of striatulus taken on 

 the coast of southern Alaska during the migrations are closely similar 

 to the Flood Glacier bird. 



Buteo borealis calurus Cassin. Western Red-tailed Hawk 



Red-tailed hawks were seen at several points in the interior, but 



never in any numbers. Two or three were noted near Telegraph Creek 



at close enough range to enable their rufous tails to be distinguished ; 



some dark colored hawks, supposed to be of this species, were seen at 



