Rook BTO - British Trust for Ornithology

My mother and the majestic rook seem to have a thing going on. He has become quite tame – The Irish Times

Rook (Corvus frugilegus) - British Birds - Woodland Trust

Carrion Crow, Corvus corone, Black Bird, Diet

Black birds that aren't blackbirds

The raucous rooks Scottish Wildlife Trust

SCOTTISH BIRDS - The Scottish Ornithologists' Club

Rook (bird) - Wikipedia

Garden Rook Survey BTO - British Trust for Ornithology

bird ringing Blashford Lakes Nature Reserve

PDF) Numbers of nesting Rooks Corvus frugilegus in the United Kingdom in 1996

Rook uk hi-res stock photography and images - Alamy