乌鸦们每晚都会回到树上的栖息地。

The crows return to their ___roosts in the trees every night.

那些麻雀在屋檐下的栖息处过夜。

The sparrows spent the night at their ___roosts under the eaves.

傍晚时分，一群鸽子栖息在教堂的屋顶上。

A flock of pigeons ___roosts on the church roof at dusk.