Nestling
둥지새끼
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<speciesfyi-glossary slug="nestling"></speciesfyi-glossary>Definition
A young bird that has not yet left the nest and is still being fed and cared for by its parents.
Detailed Explanation
Nestlings of altricial species are naked, blind, and helpless at hatching, entirely dependent on parents for thermoregulation and food. Their rapid growth demands enormous parental investment — parent songbirds may visit the nest hundreds of times daily. The nestling period is the most vulnerable phase of a bird's life: nest predation accounts for the majority of reproductive failures. Nest cameras have transformed our understanding of nestling behavior and sibling competition.