i32 university of colorado studies 



Birds and Mammals of Northwestern Colorado 

 By A. H. Felger 



The following annotated list of 133 species of birds and 51 mammals 

 includes those observed and collected on the expedition and also those 

 reported on good authority from the region. The absence of certain 

 species, especially alpine forms, is due to the fact that our work was 

 done almost wholly between 5,500 and 8,000 feet altitude. Only twice 

 did we pass this latter height, namely, during one day from Marvine 

 Lodge to Marvine Lake and return, and one and a half days from Fitz- 

 gerald's to Trapper's Lake and back. At no time were we above 

 timberline and only once above 9,500 feet — while at and near Trapper's 

 Lake for two or three hours. 



I endeavored to record the exact number of individuals of the species 

 seen, counting one by one except in cases of large flocks, when the num- 

 bers were estimated. 



A few places which are extra-territorial with regard to the map 

 (page 103) should be here located: California Park lies at the head of 

 Elkhead Creek which empties into Bear River from the north a few 

 miles east of Craig. To the north of this park lie the Elkhead Moun- 

 tains. Sand Mountain is at the north edge of California Park and is 

 one of the Elkhead Range. Bear's Ears Mountain ascends from the 

 western edge of California Park. Cedar Springs are 6 miles west of 

 Craig near Cedar Mountain. They have been a famous watering place 

 for deer, elk and bison. 



I desire to express my appreciation and gratitude to the following: 

 Dr. W. H. Bergtold, of Denver, for kind and valuable advance sugges- 

 tions pertaining to collecting in a field in which he is thoroughly familiar 

 and for helpful notes given me for these lists; Mr. R. S. Ball, of Meeker, 

 who has in the Meeker Hotel a private collection of local birds and 

 mammals, and who has generously given me much information; Mr. 

 E. R. Warren, of Colorado Springs, who has identified some of the more 

 difficult mammals and has gone over my mammal manuscript; Messrs. 

 Enos A. Mills, Samuel Himes, William Green, James Johnson, James 

 Fitzgerald, J. R. Bartlett, W. A. Kyser and H. G. Buckingham, who have 



