Vol 'l9W XVI ] Blackwelder, Birds of the Upper Yukon. 61 



in pairs, were seen on the swift, upper tributaries of Beaver Creek in July. 



Branta canadensis hutchinsi (?) Hutchins' Goose. — Nests along 

 Beaver creek from Willow Creek to the flats. Flocks were seen on the 

 gravel bars in the middle of August and again on the Yukon flats. Some 

 young still unable to fly were found about August 5. 



Grus canadensis. Little Brown Crane. — Common in August on 

 Beaver creek at the edge of the flats. One that was shot had blueberries 

 in its crop. At this time they go in small flocks of three to eight. When 

 alarmed they give out a loud guttural croak or clatter that sounds like the 

 rattling of a pebble in a tin can. 



Gallinago delicata. Wilson's Snipe. — One seen at Dawson August 

 20. Common in the marshy flats of Birch Creek, July-August 15. Has a 

 habit of flying overhead in the evening like a nighthawk, although more 

 rapidly, meanwhile making a strange whistling sound. 



Pisobia bairdi. Baird's Sandpiper. — Only four were seen. 



Helodromas solitarius cinnamomeus. Western Solitary Sand- 

 piper. — A few were seen along Beaver Creek in the flats. 



Actitis macularia. Spotted Sandpiper. — Widely scattered along 

 the Yukon and its tributaries far back into the mountains. 



Lagopus sp. Ptarmigan. — A Ptarmigan, with much white on the 

 wings and tail, is common on. heather slopes above timber-line. Young 

 learning to fly July 1-10. 



Circus hudsonius. Marsh Hawk. — Common in the marshes of the 

 Birch Creek flats. 



Accipiter velox. Sharp-shinned Hawk. — Common on lower Birch 

 Creek. 



Buteo sp. — Large soaring hawks of unknown species from dark brown 

 to light gray seen throughout the region. 



Archibuteo lagopus sancti-johannis. American Rough-legged 

 Hawk. — Several seen in the Birch Creek flats. 



Aquila chrysae'tos. Golden Eagle. — Not uncommon in the moun- 

 tains west of Circle. One pair with fledglings was found occupying a 

 bulky nest of sticks in a high dolomite crag on the southeast slope of the 

 White Mountains, July 17. 



Haliseetus leucocephalus alascanus. Alaska Bald Eagle. — Not 

 very common. Two adults were seen in the White Mountains and three 

 in the flats of Beaver Creek early in August. 



Falco peregrinus anatum. Duck Hawk. — Common wherever 

 suitable nesting sites are available among high crags or rock spires in the 

 Yukon canyon and especially in the White Mountains. It is very pugna- 

 cious, and often attempts to drive an intruding man out of its locality by 

 diving at him repeatedly and with incessant screeching. 



Scotiaptex nebulosa nebulosa. Great Gray Owl. — The wings 

 and head of a dead bird were seen in a cabin at Beaver. The bird had 

 been killed nearby, but the date was not known. Another skin was nailed 

 up on a house at Yukon Crossing, Y. T. 



