Houghton Mifflin · Mariner Books · Houghton Mifflin · Houghton Mifflin Harcourt
| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Hawks in Flight: The Flight Identification of North American Migrant Raptors | 978-0-395-51022-3 | 1989 | David Allen Sibley · Pete Dunne |
| How to Spot an Owl | 978-1-881527-36-7 | 1994 | Patricia Taylor Sutton |
| How to Spot Butterflies | 978-0-395-89275-6 | 1999 | " |
| How to Spot Hawks and Eagles | 978-1-57630-000-8 | 1996 | " |