Rook The Wildlife Trusts

The all-black rook is a sociable bird, so can be spotted in flocks or nesting colonies, known as 'rookeries'. Unlike the similar carrion crow, it has a grey bill and 'baggy trouser' feathers around its legs.

Rook BTO - British Trust for Ornithology

UK Wildlife Trusts

Dunsdon Species List - Devon Wildlife Trust

Rook Wildwood Group

Trust me, there's no way to house-train a rook

Rook Survey

Identifying Rooks BTO - British Trust for Ornithology

Rook NatureSpot

Garden Birds and Wildlife: Toms, Mike, Sterry, Paul, Beardshaw, Chris: 9780749559120: : Books