Grey squirrel

Grey squirrel

Observation - Grey squirrel - UK and Ireland. Description: I am sure this is a grey squirrel but it had a definite red tinge on its head and back. Could anyone tell me if this is normal, or do reds and greys interbreed? I usually see reds in this area.

I am sure this is a grey squirrel but it had a definite red tinge on its head and back. Could anyone tell me if this is normal, or do reds and greys interbreed? I usually see reds in this area.