in copula

Adjective

not-comparable

(zoology) During copulation; in the copulative state.

Japanese Meaning

交尾中の / 交尾状態にある

The in copula birds were often less wary of predators, allowing researchers to approach closely.

交尾中の鳥は捕食者に対してたいてい警戒心が薄く、研究者が近づきやすかった。

Sense（1）

(zoology) During copulation; in the copulative state.