| title | media type | ISBN-13 | year of publication |
|---|---|---|---|
| It's About Birds | Hardcover | 978-0-03-019431-3 | 1978 |
| Just My Size | " | 978-0-06-022418-9 | 1990 |
| Just My Size | " | 978-0-06-022419-6 | 1990 |
| What Makes a Bird a Bird? | Paperback | 978-1-57255-008-7 | 1995 |
| What Makes a Bird a Bird? | Hardcover | 978-0-695-89273-9 | 1969 |
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