Like most wildlife, the coat on weasels looks the best in winter or spring . The ermine is simply a short tailed weasel in its white winter coat. As such you can only take the classic white ermine photo in winter.
The head and body length can range from 7 - 13 inches and the tail can grow up to 5 inches. The males are much longer than the females. In the spring and summer the ermine's coat is chocolate brown with a white underbelly and a black tip on the tail. In the winter the coat turns entirely white except for the black end of its tail. These little fellows eat rodents and other small mammals.