Adult Greater Black-Backed Gull Bird Skull | Larus Marinus

Was a huge bird, the skull measures approx. 13cm long and 5cm wide. 

Has outer beak sheath. 

This specimen was found washed up on the North East coast of Scotland. It was then cleaned with cold water maceration & whitened with peroxide. 

This is not an Australian / US native. This bird is from the UK.