| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Birds of North America Calendar 2011 | 978-0-9823695-1-7 (0-9823695-1-4) | 2010 |
| Waterfowl Calendar 2010 | 978-0-9823695-0-0 (0-9823695-0-6) | 2009 |
| Waterfowl of North America Calendar 2011 | 978-0-9823695-2-4 (0-9823695-2-2) | 2010 |