The part of the undersurface of a bird's body from the breastbone to the vent or to the opening of the cloaca [1].
References[]
- ^ Terres, John K. (1980). The Audubon Society Encyclopedia of North American Birds. Alfred A. Knopf, Inc. ISBN 0394466519.
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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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