Rook BTO - British Trust for Ornithology

Rook - Tenterden & District Museum

Identify crows Wildlife Watch

Garden Rook Survey BTO - British Trust for Ornithology

Rook - BirdWatch Ireland

Rook Wildwood Group

How to tell corvids apart – Southwick Country Park Nature Reserve

The Secret Life of Crows

Rook in the Red Coat - 100 Objects That Made Kent

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

Birdwatch: without ash, whither rooks?, Birds

BTOvideo

British Trust for Ornithology Shop – BTO Services Ltd.

Identification of Juvenile Rooks and Carrion Crows - Corvid Isle

Understanding birds BTO - British Trust for Ornithology