An Annotated List of the Birds of Boulder County, Colorado by Junius Henderson
AN ANNOTATED LIST OF THE BIRDS OF BOULDER COUNTY, COLORADO, by JUNIUS HENDERSON
University of Colorado Studies, Vol. VI, No. 3; Boulder, Colorado; April, 1909
This list which, according to the introduction, includes 216 species of birds known to occur in Boulder County, is a compilation based upon the published and unpublished observations of a number of ornithologists who have worked within the confines of the county at various times. The introduction deals with the topography of the county, and is followed by a bibliography, which is only partially complete. The remarks under each species in the annotated list proper are exceedingly brief, only enough being said to establish the status of the species. Taken as a whole, the list, which is 23 pages in length, altho written by a paleontologist, is quite comprehensive, and aside from the usual quota of errors in citation, omissions, etc., and a few rather surprising statements (e. g., the Lesser Scaup recorded as a "rare migrant") the list is well written and a timely contribution to Colorado Ornithology.
