Describing young birds that are well developed at hatchling, with down feathers and open, fuctioning eyes. Many precocial young are soon able to walk or swim and find food themselves [1]


  1. ^ Frances, Peter; et al. (2007). Bird: The Definitive Visual Guide. Dorling Kindersley Inc. ISBN 1564582957. 
Anatomy of an amiotic egg.svg This article is part of Project Glossary, a All Birds project that aims to write comprehensive articles on each term related to animals.

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