Colver, Kevin J. books & textbook
Calls of Ducks & Geese, The by Lang Elliott (2008-08-21)
Stackpole Books; Pap/Com edition (2008-08-21) / Paperback
Know Your Bird Sounds: Common Western Species (with audio CD) (The Lang Elliott Audio Library) by Lang Elliott (2008-01-10)
Stackpole Books /1656-01-01 Paperback
Songbirds of Yellowstone and the High Rockies
Kevin J. Colver Productions /1996-01-01 Audio CD
isbn-10: 1929797079 / isbn-13: 9781929797073
