巣す雛ひな

noun

nestling; baby bird still in the nest

Refers to a young bird that has not yet left the nest. The reading すびな is a voiced variant.

• 木きの上うえに巣す雛ひなが三さん羽わいる。

  There are three nestlings in the tree.

• 巣す雛ひなはまだ飛とべない。

  The nestlings cannot fly yet.