Saturday, 25 January 2020

When is a Rook, not a Rook?

The top of photo is an adult Carrion Crow, the bottom photo is a juvenile Rook - or is it?

The culmen shape and length look good for Rook but surely if it was a Rook (now into its 2nd calendar year) then you would expect to see the greyish-white starting to appear around the base of the bill (at least a little bit) instead of an all black bill the same as a Carrion Crow. The rounded head and lack of noticeable peaked crown also points towards Carrion Crow. So...if it's not a Rook, then is it just an aberrant Carrion Crow with a rather straight and pointy culmen?

Carrion Crow
Juvenile Rook?

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