| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Colorado Wildlife Viewing Guide | 978-1-56044-797-9 | 2000 | |
| The Guide to Colorado Birds | 978-1-56579-283-8 | 1998 | Herbert Clarke · Mary Taylor Gray |
| The Guide to Colorado Mammals | 978-1-55591-583-4 | 2012 | |
| The Guide to Colorado Reptiles and Amphibians | 978-1-55591-584-1 | 2011 | |
| Watchable Birds of the Southwest | 978-0-87842-322-4 | 1995 | Mary Taylor Gray |
M. T. · M. Taylor · M. Young · Mary Taylor · Mary Young · T. Young · Taylor Young
FalconGuides · Fulcrum Publishing · Mountain Press · Westcliffe Pub