One of these things is not like the other...

While trying to photograph fallow deer and failing miserably I managed to get this picture. The weather today was extremely overcast with snow and rain and my camera just would not play the game hence the grainy image. Anyway I took this at the Ashridge estate where the majority of Fallow here are a lovely chocolate colour, a melanistic mutation which seams to have dominated over the regular spotty colour. occasionally though things get a little mixed up and a leucistic variety occurs, and in this case twice.