noun
tree sparrow; sparrow
Refers especially to the tree sparrow, a small familiar bird often seen around houses, fields, and utility wires in Japan.
庭に雀が二羽来た。
Two sparrows came to the garden.
電線に雀が並んでいる。
Sparrows are lined up on the power line.
noun
gossipy person; well-informed person; talkative insider
Only when written 雀
Figurative and uncommon as a free-standing modern noun; it is safer to understand it in established or compound-like expressions where 雀 suggests a chattering or well-informed person.
「楽屋雀」は、舞台裏の事情に詳しい人を指す。
Gakuyasuzume refers to someone well informed about backstage matters.