| Helpers at Birds' Nests A Worldwide Survey of Cooperative Breeding and Related Behavior | | | Author:
| Skutch, Alexander Frank | | Illustrator:
| Gardner, Dana | | ISBN: | 978-0-87745-150-1 | | Publication Date: | Dec 1986 | | Publisher: | University of Iowa Press
| | Book Format: | Hardback | | List Price: | USD $32.50 |
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