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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 This article is part of Project Glossary, an All Birds project that aims to write comprehensive articles on each term related to animals.