Hybrid Blackgrouse?

Q) While walking-up grouse in Perthshire, one member of our party shot a bird with almost entirely black plumage. I would be extremely grateful whether you could tell me if it could have been a hybrid with a blackgrouse? G. MILLER By email

A break for blackgrouse

Fieldsports enthusiasts in the north of England who have imposed a voluntary shooting ban are helping to conserve blackgrouse according to GWCT research