1926] Swarth: Birds and Mammals from the Ailin Region 139 



respect they approach ruiiginasa, of the Alaskan coast. The juvenal 

 plumage is extremely dark, sooty almost, different from that of any 

 other young yellow warblers that I have seen. 



Dendroica coronata hooveri McGregor. Alaska Myrtle Warbler 



Present at Carcross when we arrived. May 22 ; one was seen there 

 carrying nest material on May 23. About Atlin it is a common species, 

 breeding mostly in the lowlands. 



A nest with five fresh eggs (Mus. Vert. Zool. no. 1992) was taken 

 by Brooks on June 15. It was in a slender spruce, one of a small 

 thicket in a locality that is largely poplar grown, about forty feet from 

 the ground and near the top of the tree. It rested on the twigs form- 

 ing the terminal forks of a branch, about three feet from the trunk. 

 The outer walls of the nest were built mostly of the shredded bark of 

 fire-weed stalks, with a little fire-weed "cotton," some coarse grass 

 and small twigs, and several wing and tail feathers of a small bird. 

 In the lining there was some horse hair, mountain sheep hair and a 

 few soft feathers. 



Another nest, containing newly hatched young on June 28, was in a 

 small jack pine in open woods on the shore of Lake Atlin. 



During the last week in August and the first week in September 

 the southward exodus was at its height. Flocks of warblers, mostly 

 this species, flitted rapidly through the poplar woods, and there was a 

 constant stream of myrtle warblers making long flights overhead. The 

 last one, a single bird, was seen September 19. 



Eight specimens were collected (nos. 44927-44934), one adult 

 female, five in juvenal plumage, and a male and female in first winter 

 plumage. 



Dendroica striata (J. R. Forster). Black-poll "Warbler 



Fairly common but easily overlooked. Only one or two pairs were 

 seen on the mainland, and it was not until the young were hatched 

 that we discovered that the species was nesting in fair abundance on 

 certain islands in Lake Atlin. The birds are inconspicuous, and the 

 call-note is sufficiently like that of the abundant Dendroica coromata 

 to be readily mistaken. The first young, just out of the nest, was seen 

 July 13, and thereafter the species was encountered commonly. Young 

 were molting from juvenal to first winter plumage during the last 

 week in July and first week in August. The young birds lingered until 



