^"Is^;'^] T>.\\\so^, Birds of Oka>ioi,rn,i Co., Wash. I 73 



iinwarj. When the young are nearly full grown, the Hock begins to retire 

 slowlj up the mountain side until the middle of fall, when they are to be 

 found only on the higher ridges. Those, however, whose winter home is 

 on the highest western ranges do not seem to have so much latitude of 

 movement. On August 5 I encountered a brood of full grown \oung on 

 Wright's Peak, at an altitude of 7000 feet. 



39. Dendragapus franklinii. Franklin's Gkoii.se. — Not nearly so 

 common a bird as the last. It does not apparently range so low as the 

 Sooty Grouse in any given section where both are found ; nor on the 

 contrary^ I suspect, is it to be found about the higher peaks. On the 28th 

 of April, 1S96, I found a nest of this bird at an altitude of about a 

 thousand feet above Lake Chelan. The bird was a close sitter, and her 

 seven eggs were unusually large : 1.98 by 1.S3 and 1.94 by 1.35, being the 

 measurements of two average eggs of the set. 



30. Bonasa umbellus togata. Canadian Ruffed Grouse. — The 

 differentiation of the subspecies of the Ruffed Grouse is not at all clear 

 in this region. In any case the range and habit of the local species is 

 nearly like that of the eastern bird, inasmuch as it frequents copses, 

 springs, and river-bottoms at low altitudes. 



31. Lagopus leucurus. White-tailed Ptarmigan. — This species is 

 reported as not uncommon in the higher altitude. I met with them once 

 on the barren summit of Wright's Peak, at an elevation of about 9000 feet. 

 So far from deserving the name of 'fool hens', applied to them in the 

 winter season, when they may be readily approached, these Ptarmigan in 

 August were excessively afraid and absolutely unapproachable, although 

 it is certain they had never seen a human being before. 



32. Pediocaetes phasianellus columbianus. Columbian Sharp- 

 tailed Grouse. — The common bird in open situations, which yet afford 

 copses and cover, — an invariable accompaniment of stubble-fields, and an 

 habitue of grain-stacks. In portions of the county they are still very 

 abundant, but where hunted they soon become extremely wary. 



33. Zenaidura macroura. Mourning Dove. — Not at all common. 

 Only one nest was found during my stay. 



34. Cathartes aura. Turkey Vulture. — A scattering few are to be 

 found, but it is doubtful whether the county boasts a score. 



35. Circus hudsonius. Marsh Hawk. — Perhaps a dozen individuals 

 seen. 



36. Accipiter velox. Sharp-shinned Hawk. Several individuals noted. 



37. Buteo borealis calurus. Western Red-tail. — Based on a sin^-le 

 specimen, preserved by Ralph Metcalf, near Silver. The Buteos are rare 

 in Okanogan County, but must be common on the Big Bend Plateau, just 

 across the Columbia River. 



38. Archibuteo lagopus sancti-johannis. American Rough-legged 

 Hawk. — Only one individual of this cumbrous Hawk was noted. 



39. Archibuteo ferrugineus. Ferruginous Rough-leg. — Several 

 pairs seen. 1 found a nest near Chelan, which was occupied by two fresh 



