With emphasis on the birds of northwesternmost North America, including taxa endemic to Beringia and the circumpolar North, the Bird Collection is the best in existence of avian material from Alaska. Almost all bird species and subspecies known in Alaska are represented and are preserved primarily as skins, skeletons, and tissues. The collection consists of over 20,000 birds. Most recent preparations include skin, skeleton, tissue, and stomach samples for each individual. Tissues are part of the Genetic Resources Collection. Specimens are regularly loaned for scientific research. Specimen loan policies and summary database are available for interested researchers.