Common Buzzard

Common Buzzard

Observation - Common Buzzard - UK and Ireland. Description: Common Buzzard with tail feather damage (3 views of the same bird) - it was being harassed by rooks (or maybe crows) - do rooks cause this sort of damage or is there another explanation ? There didn't seem to be any physical contact while I was watching

Common Buzzard with tail feather damage (3 views of the same bird) - it was being harassed by rooks (or maybe crows) - do rooks cause this sort of damage or is there another explanation ? There didn't seem to be any physical contact while I was watching them - just dives and swoops around the tail of the buzzard. Any comments / other explanations?