The Rook can be distinguished from the Carrion Crow by its large, light grey beak and barer face; it is also not
as sleek, often with shaggy feathers on its belly giving it an angular shape.
Typical bare grey beak and shaggy, angular shape.
It is gregarious, found in flocks and roosting in rookeries of many nests in neighbouring trees.
Its corvid relative the Jay is well known for burying acorns for winter (and propagating oak trees).
Here a Rook is doing the same, collecting acorns from beneath a tree and burying them in a field.
Adult Rook (left) with bare grey beak and untidy, angular appearance and two young Rooks which look
like Crows with sleeker shape and feathered top of beak (which they lose later)
Rook size comparison with two Jackdaws: bigger bird and beak but smaller head
A rookery is a colony of multiple nests
Some have a bluish tinge. This one has some brown feathers.