The Norris Center houses a collection of approximately 1,200 study skins and 30 fully mounted birds, including western species with a strong emphasis on marine birds.  There are also a diversity of spread wings, feet, and other partial specimens appropriate for illustrating bird adaptations.  The collection is appropriate to support classes in vertebrate evolution and ornithology.  With the help of volunteers and student interns, the museum is actively preparing new specimens and adding to the collection.