| title | media type | ISBN-13 | year of publication |
|---|---|---|---|
| Backyard Birds | Hardcover | 978-0-06-021039-7 | 1993 |
| Backyard Birds | Library Binding | 978-0-06-021040-3 | 1993 |
| Backyard Birds | Paperback | 978-0-06-446150-4 | 1993 |
| Trees | Hardcover | 978-0-06-021468-5 | 1995 |
| Trees | Library Binding | 978-0-06-021469-2 | 1995 |