Rooks are resident in Great Britain, Ireland and can also be found in north and central Europe. They can also be found in Iceland and parts of Scandinavia, where they often live south of the 60th latitude and in habitats that ravens dislike, such as open agricultural areas.
Rooks also occur as an eastern race in Asia, where they differ in size, being slightly smaller on average, and having a more fully feathered face. In the north of its range, Rook’s have a tendency to move south during autumn though more southern populations are apt to range sporadically also.
In addition, this species has been introduced to New Zealand, with several hundred birds being released there from 1862 to 1874. Although their range is very localised, rook’s are now regarded as an invasive pest and are the subject of active control. However, the ecological and economic impacts of rooks in New Zealand have not been well-studied.