I have a mare who is a bay roan, and boy do those roans change with the seasons! Now, in winter, she looks like any old bay. I have a horse that I'm training who is a darker bay, and they look like twins in the winter. (Aside from the great height difference, as my mare is pony sized and the other horse is easily 16 hands.
) The mare is Gypsy, who is about 22 years old. Here are some pictures of her drastic changes. I would love to see other roans and how much they change from winter/summer.