72 NORTH AMERICAN FAUNA. [no. 19. 



taken wore youni^' hirds, jiiul all wore in full molt. The iridcs of a 

 young male taken September 19 were vandyke l)rowii; skin a))()ve 

 eye, rufous; 1)111, slate black, whitish at tip and salmon l)uli' at base of 

 mandible; nails, white. 



We were told that ptarmigan were very abundant near Atlin, British 

 Columbia, at the head waters of the Porcupine River and IVirch Creek, 

 near Rampart City, along the Kuskokwim, and in winter at Glacier 

 and Lower Lebarge. Doubtless some of these statements refer to the 

 following species. 



72. Lagopus rupestris. Rock Ptarmigan. 



At White Pass Summit, June 11 and 13, we took three males still in 

 white plumage (excepting a few dark feathers on head and lower 

 neck), and saw a few others. Osgood found two eggs there, pro])ably 

 of the previous year, lying on the moss under an alpine hemlock. 

 Dr. Romig told me that this sDecies was more common than L. lagopus 

 along the Kuskokwim. 



YLagopuf^ rujyestris nehoni. Nelson Ptarmigan. We were told at 

 Unalaska that this species had been abundant during the summer on 

 Unalaska Island, but that the l)irds had l^een almost exterminated hy 

 the officers of an English man-of-war. We saw none during the day 

 and a half we were there.] 



73. Lagopus leucurus. White-tailed Ptarmigan. 



Osgood took a white-tailed ptarmigan June 8 on the summit of the 

 cliffs above Glacier, and saw several other ptarmigan, probably of this 

 species. On June 8 he found at the same place, on the moss under an 

 alpine hemlock, fragments of two ptarmigan eggs, sparingl}^ dotted 

 with brown as in leucurus. 



71. Circus hudsonius. Marsh Hawk. 



We saw one at Lake Marsh July 8, one at Lake Lebarge Jul}^ 12, 

 a young bird on which duck hawks were feeding near the Tahkandik 

 River August 7, one about 20 miles above Circle August 12, and two 

 at Circle August 15 and 20. At the Aphoon mouth 1 saw several 

 August 28. At St. Michael we secured a .young bird September 2, 

 and saw single marsh hawks on September 6, 7, and 11. The young 

 bird taken is noticealjl}^ darker than .young from Dakota and New 

 England. 



75. Accipiter velox. Sharp-shinned Hawk. 



I saw one at Lower Lebarge Juh^ 17, and two near White River 

 July 30; Osgood found one feeding on a thrush near Charlie Creek 

 August 9; at Circle I saw one August 17 and shot an adult female 

 August ll>. Osgood found a nest of this species, about 15 feet 



