colour change

[fliss]

why do stoats and some birds have white coats in winter

[B00]

To camoflage em, specially amongst wintery foilage

[Barnze]

Because the brown ones are in the wash!

http://barnze.blogspot.com/

[burnhal]

They will only go through this change in the far north of Britain for instance- where snow is expected. Hares will do this as well. Not much use doing it in somewhere like Dorset where snow is as rare as rocking horse poo!