LIST OF ILLUSTRATIONS. 



Portrait of General William Jackson Palmer Frontispiece 



PLATE. PAGE 



1. Nesting Colony of Great Blue Heron . 



„ /Young Great Blue Heron . 

 ■ I Young Night-Herons 



3. Ptarmigan in September and March . 



4. Nesting Site of Western Redtail 



5. Adult and Young of Rocky-Mountain Screech 



Owl 



6. Nest of Western Horned Owl 



7. Young Red-shafted Flickers 



8. Nest of Broad-tailed Humming-bird . 



9. Arkansas Kingbird and Nest 



10. Horned Lark in the Snow 



11. Magpies from the Nest 



12. White-headed Jay . . . I . 



13. Nest of YeUow-headed Blackbird 



14. Nest of House-Finch and Arkansas Goldfinch 



15. Black-headed Grosbeak on the Nest . 



16. Nest of American Dipper . 

 Contour Map of Colorado 



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