noun
flock of sparrows
Refers specifically to a group or flock of sparrows. Not used for other birds.
電線に群雀がとまっている。
A flock of sparrows is perched on the power lines.
秋になると、群雀が田んぼに集まる。
In autumn, flocks of sparrows gather in the rice fields.
Compound of 群 (むら, 'group') and 雀 (すずめ, 'sparrow'). The reading むら is a native Japanese word for a cluster or group.