This brings a smile to my face!
I live in wrexham, north wales and have alot of permison in shropshire where black rabbits are a common ocurence!
We had 5 last week and only 2 gray, One permisiion seems to be over run with them and they seem to be bigger and fatter than the average wild rabbit! After speaking to the farm owner, who is a very keen hunter, (but dosent have the time to ferret) he said it is a strain in the natural gene which changes somethink in rabbits genetics which causes them to be a solid black colour which is why they are becoming more popular!
thanks joe.