Black and Furry

I saw a wild black rabbit today on my 16.5 mile run. Got me thinking that there could be some sort of community of them in Brookman's Park, which is a rather posh area a few miles from us. Reason being that Letchworth Garden City has black squirrels. I did my motorcycle training there and given I failed my test 4 times, I know every road there is to know in Letchworth. And all the squirrels I saw were black.