THE 



WILSON BULLETIN 



NO. 100 

 A QUARTERLY JOURNAL OF ORNITHOLOGY 



VOL. XXIX SEPT., 1917 NO. 3 



OLD SERIES VOL. XXIX. NEW SERIES VOL. XXIV. 



THE BIRDS OF DENVER. 

 An Annotated List. 



BY W. H. BERGTOLD. 



This list is published, not only to make available to orni- 

 thologists in general a part of the writer's accumulation of 

 data relating to Denver's birds, but also to render aid, in 

 a small way, to bird-loving visitors to this city, especially to 

 those whose visit may be of brief duration, and who wish to 

 make, from a bird lover's point of view, the most of such a 

 " stop-ofif." 



It is hoped that the list will point out what birds one may 

 reasonably expect to see in Denver at any given time, and to 

 define, in a general way, the status of any one of such birds. 

 Parenthetically, the writer may be permitted to digress a bit, 

 and suggest to the visitor who may have some time left over 

 after a general survey of Denver's birds, that it can be profit- 

 ably spent in studying a few mountain species, which can be 

 found in Lookout Mountain Park. This region is easily 

 reached in a little over an hour's trolly ride from Denver, 

 which ride is a trip along the valley of Clear Creek, and 

 which will in itself disclose birds not common, or seldom, 

 seen in Denver. 



The situation of, and the conditions about, Denver, make 

 it a peculiarly interesting place for the study of western liird 

 life ; its geographical location makes it possible to see \\ ithin 

 its boundaries species and subspecies usually restricted to 



