The Birds of Denver 117 



While many of the above named birds unquestionably may 

 have been seen or taken within the present liniits of Denver, 

 nevertheless it has been so often impossible to determine, 

 from the published record, exactly where the species was 

 seen or taken, that it has been deemed wisest to restrict the 

 following- annotated list to the species seen by the present 

 writer within such limits, which may be outlined approxi- 

 mately as follows : on the north by West 48th and West 52d 

 Avenues, on the west by Sheridan Boulevard, on the south b}' 

 Yale Avenue and on the east by Yosemite Street; these lim- 

 its enclose an area of a Httle more than fifty-eig-ht square 

 miles. 



The list comprises all the species seen by the writer in 

 Denver during the past twenty-three years, and he alone 

 (exceptions noted) is responsible for the correctness of such 

 records.^ 



No attempt has been made to include such other birds as 

 are known to occur in the immediately contiguous areas of 

 Riverside, and Fairmont cemeteries, nor in the adjoining 

 towns of Aurora, Englewood, and Edgewater. 



The writer is confident that a much larger number, than 

 this list shows, of bird species visit Denver from year to 

 year ; in order to make such a list complete, however, one 

 w^ould have to make regular daily observations, a system- 

 atic study obviously impossible to one whose vocation com- 

 mands most of his time for other purposes. 



A visitor to Denver should not be disappointed if many 

 of the species herein listed are not seen during a brief so- 

 journ in the city, as many of the birds of the list are of 

 irregular occurrence ; nor should a visitor feel that it is use- 

 less to look for birds in the district under consideration dur- 

 ing the season when nature is asleep. No month in the year 

 in Denver is without its birds, and a street car will take one 

 quickly to one of the larger parks, where in any season some 



' For the sake of relative completeness twenty-nine other species 

 recorded by Cooke in his list of Colorado Birds, as having been seen 

 or taken in Denver, are herein included, and so indicated. 



