The upper or lower part of a bird's bill, known as the lower or upper mandible, respectively [1].
Reference[]
- ^ France, Peter; et al. (2007). Bird: The Definitive Visual Guide. Dorling Kindersley Inc. ISBN 9780756631536.
See also[]
Culmen
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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.
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