EXPLANATION TO PLATE IL 



Fig. 1. Bonasa umbellus, Linnsus. Ruffed GroMse. 



Fig. 2. Bonasa umbellus togata, Linnaeus. Canadian Ruffed Grouse. 



Fig. 3. Bonasa umbellus umbelloides, Douglas. Gray Ruffed Grouse. 



Fig. 4. Bonasa umbellus sabini, Douglas. Oregon Ruffed Grouse. 



Figs. 5, 6, 7, 8, 9, 10. Lagopus lagopus, Linnteus. Willow Ptarmigan. 



Figs. 11, 12, 13, 14, 1.5. Lagopus rupestris, Gmelin. Rock Ptarmigan. 



Figs. 16, 17. Lagopus leucurus, Swainson. White-tailed Ptarmigan. 



Figs. 18,19,20. Tympanuchus americanus, Reichenbach. Prairie Hen. 



Fig. 21. Zenaida zonaida, Bonaparte. Zenaida Dove. 



Fig. 22. Engyptila albifrons, Bonaparte. White-fronted Dove. 



Fig. 23. Melopelia leucoptera, Linnaeus. White-winged Dove. 



Fig. 24. Columbigallina passerina pallescens, Baird. Me.xican Ground Dove. 



Fig. 2.5. Scardafella inea. Lesson. Inca Dove. 



Pig. 26. Geotrygon montana, Linnaeus. Ruddy Quail Dove. 



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