EXPLANATION TO PLATE II. 



Bonasa umbellus, Linnaeus. Ruffed Grousr. 



Bonasa umbellus togata, Linnaeus. Canadian Ruffed Grouse. 



Bonasa umbellus umbelloidcs, Douglas. Gray Ruffed Grouse. 



Bonasa umbellus sabini, Douglas. Oregon Ruffed Grouse. 



Lagopus lagopus, Linnaeus. Willow Ptarmigan. 



Lagopus rupestris, Graelin. Rock Ptarmigan. 



Lagopus leucurus, Swainson. White-tailed Ptarmigan. 



Tympanuehus amerieanus, Reichenbach. Prairie Hen. 



Zenaida zcnaida, Bonaparte. Zonaida Dove. 



Engyptila albifrons, Bonaparte. White-fronted Dove. 



Melopelia leucoptcra, Linnaeus. White-winged Dove. 



Columbigallina passerina palleseens, Baird. Mexican Ground Dove. 



Scardafella inea, Lesson. Inca Dove. 



Geotrygon montana, Linnaeus. Ruddy Quail Dove. 



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