This collection consists of three 12.5 x 15.5 x 10-inch boxes of data and material gathered by Robert Andrews and Robert Righter in the course of researching their numerous publications, some written together, others solo, concerning the birds of Colorado. Andrews and Righter collaborated on the distinguished books Colorado Birds: a Reference to Their Distribution and Habitat, published by the Denver Museum of Nature & Science in 1992, and Birds of Barr Lake and Surrounding Areas 1888 through 1999, published in 2002 by Rocky Mountain Bird Observatory. On his own, Andrews contributed many articles to the journal of the Denver Field Ornithologists and served as editor for the Western Field Ornithologists. Righter, meanwhile, produced the audio guide Bird Songs of the Rocky Mountain States and Provinces by Righter and Keller, published by Cornell Laboratory of Ornithology, and Birds of Western Colorado Plateau and Mesa Country by Righter, Levad, Dexter and Potter, published in 2004 by Grand Mesa Audubon Society. Their papers in this collection also include bird data collected by other observers from such far-flung areas as Florida, Texas, and North Dakota, as well as the entire state of Colorado. The third box in the collection, titled Barr Lake Bird Data, contains lists of bird data by species, notes on specific species, correspondence, notes from field trips and historical records dating from 1888 to 1999 used for writing the book about that area.
