dgspen's picture

Juvenile Rook

Observed: 3rd May 2010 By: dgspendgspen’s reputation in Birdsdgspen’s reputation in Birdsdgspen’s reputation in Birds
Rook- juvenile.JPG
Description:
Identifications
Species interactions

No interactions present.

Species with which Carrion Crow (Corvus corone) interacts

Comments

RoyW's picture

Carrion Crow for me too

Compare the shape of the bill with these (and other) observation:
Rook; http://ispot.org.uk/node/30209
Carrion Crow; http://ispot.org.uk/node/28052

The culmen (top) of a Carrion Crows bill is strongly curved, particularly towards the tip (as seen in this observation).
The bill of a Rook (even the black bill of a juvenile) tapers gradually towards the tip with no obvious curve.