The culmen is the top edge of the upper mandible [1].
References[]
- ^ Garrigues, Richard and Dean, Robert (2007). The Birds of Costa Rica. Zona Tropical Publication. ISBN 9780801473739.
This article is part of Project Glossary, an All Birds project that aims to write comprehensive articles on each term related to animals. |
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This article is part of Project Anatomy, a All Birds project that aims to write comprehensive articles on each anatomical term related to birds. |