| title | media type | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|---|
| About Insects: A Guide for Children | Paperback | 978-1-56145-232-3 | 2003 | Cathryn P. Sill |
| About Insects: A Guide for Children | Hardcover | 978-1-56145-207-1 | 2000 | Cathryn Sill |
| About Mammals: A Guide For Children | Paperback | 978-1-56145-174-6 | 2000 | " |
| A Field Guide to Little-Known and Seldom-Seen Birds of North America | " | 978-0-934601-58-0 | 1988 | Ben Sill · Cathryn Sill |
| Another Field Guide to Little Known and Seldom Seen Birds of North America | " | 978-0-934601-97-9 | 1990 | Ben Sill · Cathryn Sill |
| Beyond Birdwatching: More Than There Is to Know About Birding | " | 978-1-56145-084-8 | 1993 | Ben Sill · Cathryn Sill |
| Birds | " | 978-0-618-30722-7 | 2003 | Roger Tory Peterson Institute · Peter Alden |
| Birds | " | 978-0-395-32521-6 | 1982 | Peter Alden · Roger Tory Peterson |
| Cal 97 Bird Identification | Calendar | 978-0-525-94192-7 | 1996 | |
| Cal 98 Bird Identification Migrants | " | 978-0-525-94350-1 | 1997 | |
J. S. · John C. Sill · John F. a. Sill · John Mahlem Berry Sill · John S. · John Sill (Illustrator) · Sill John
Dutton · HOUGHTON MIFFLIN · Houghton Mifflin · Peachtree Pub Ltd · Peachtree Publishing Company