種しゅ内ない托たく卵らん

noun

intraspecific brood parasitism

Technical term in biology/ornithology for when a bird lays eggs in the nest of another bird of the same species. Contrasts with 種間托卵 (interspecific brood parasitism).

See also: 種間托卵

• カッコウは種しゅ間かん托たく卵らんで知しられるが、一いち部ぶのカモ類るいでは種しゅ内ない托たく卵らんが観かん察さつされる。

  Cuckoos are known for interspecific brood parasitism, but intraspecific brood parasitism is observed in some duck species.