nidicolous

Japanese: nidicolous
nidicolous

…The former is seen in chickens and ducks, whose chicks are called precocial or nidifugous. The latter is seen in sparrows and swallows, whose chicks are called altricial or nidicolous. Extremely precocial chicks can feed on their own immediately after hatching, but extremely altricial chicks are completely unfeathered, have not opened their eyes, and are unable to move when they hatch. …

*Some of the terminology explanations that mention "nidicolous" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…前者はニワトリやカモに見られるもので,その雛を早成性precocial,または離巣性nidifugousであるという。後者はスズメやツバメに見られるもので,その雛を晩成性altricial,または留巣性nidicolousであるという。極端な早成性の雛は孵化後すぐに自分で採餌できるが,極端な晩成性の雛は孵化したときにまったく羽毛が生えていなくて,眼も開いていないし,当然動くことはできない。…

※「nidicolous」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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