BIRDS OF BOULDER COUNTY, COLORADO 23 1 



Henderson, Junius. "Boulder, Colorado, birds increasing." The Wilson Bulletin, 



Vol. XIV, No. 39, p. 74, 1902. 

 . "Preliminary list of birds of Boulder County, Colorado." University 0} Colorado 



Studies, Vol. I, pp. 233-237, 1903. 

 . "Additional list of Boulder County birds, with comments thereon." University 



of Colorado Studies, Vol. II, pp. 107-112, 1904. 

 . "Bobolinks increasing at Boulder, Colorado." The Wilson Bulletin, Vol. XVI, 



No. 48, p. 92, 1904. 



. "The Bobolink in Colorado." The Auk, N.S., Vol. XXI, p. 486, 1904. 



. "Colorado notes." The Auk, N.S., Vol. XXVII, pp. 421, 422, 1905. 



. "With the birds in northeastern Colorado." The Wilson Bulletin, Vol. XVIII, 



No. 57, pp. 105-110, 1906. 

 — . "Destruction of herons by a hailstorm." The Condor, Vol. IX, p. 162, 1907. 



[Refers to the St. Vrain heronry. Lyons Recorder first reported the occurrence in 



issue of July 18, 1907, but designated them as cranes, this writer correcting the error 



by a letter in the next issue, July 25, 1907.] 

 . "Nesting of crossbills in Colorado." The Auk, N.S., Vol. XXIV, pp. 440-442, 



1907. [Based on Gale's notes.] 



. "Colorado notes." The Condor, Vol. IX, p. 198, 1907. 



. "An early Colorado naturalist — Denis Gale." University of Colorado Studies, 



Vol. V, pp. 25-34, 1907. [Includes some bird notes.] 

 . "The American dipper in Colorado." Bird-Lore, Vol. X, pp. 1-7, 1908. [Based 



on Boulder County observations of Gale and this writer.] 



"Annotated List of the birds of Boulder County, Colorado." University of 



Colorado Studies, Vol. VI, pp. 219-242, 1909. 



. "A history of the birds of Colorado." The Auk, N.S., Vol. XXIX, pp. 277-278, 



1912. [A review of Sclater's volume, but adds Boulder County records.] 



Hersey, J. Clarence. "The little white egret (Ardea candidissima) in Colorado." 

 American Naturalist, Vol. X, p. 430, 1876. [Records a Boulder County specimen 

 taken in May, 1876.] 



Keyser, Leander S. Birds of the Rockies, Chicago, 1902. [A story of the author's 

 travels, rather than an account of the birds of the state.] 



Longmonl Ledger. "The home of the crane." June 10, 1904. [Editorial description of 

 the St. Vrain heronry, but calls the birds cranes. This is corrected and other informa- 

 tion added by a letter from Professor Henderson in the nest issue, June 17, 1904, 

 under the heading "Blue herons."] 



Markman, Harvey. "Scientific expedition to northeastern Colorado. Zoology. 4. 

 Account of species seen, with distribution." University of Colorado Studies, Vol. 



IV, pp. 153-158, 1907. [Contains some Boulder County records.] 

 McGregor, R. C. "Junco ridgwayi in Colorado." The Auk, Vol. X, p. 205, 1893. One 



taken near Boulder. [Believed now to be hybrid.] 

 Minot, H. D. "Notes on Colorado birds." Bulletin Nuttall Ornithological Club, Vol. 



V, p. 223, 1880. [Notes species at Boulder and Nederland.] 



Oberholser, Harry C. "A new Agelaius from Canada." The Auk, N.S., Vol. XXIV, 

 pp. 332-336, 1907. [Gives distribution of several subspecies, including Boulder 

 County records.] 



