Roan

Buck is a mustang off the Pryor herd. In summer, he is nearly white. In the winter, he turns sorrel. Every other roan I've had was the opposite- dark in summer, light in winter. What gives?


Summer coat

Winter picture.

Looks like a Varnish gene acting on Paint. Yes, mustangs do have Paintaloosas! A photographer has been posting a story about a devilish little Paintaloosa stud trying to make off with a lame (but much older) studs little band of two.

Loki's the same, in the winter he's sorrel and in the summer he is PALE!

Someone called it a "Ghost" roan?

I am glad he gets dark in winter. He's a fence jumper and a white horse in snow, I'd never see him!

OR it could ALSO be the Sabino Roan gene like on Lokster.

Ah, white horse in the snow. Try dark brown dog with big black spots in the forest, without glasses! XD

In the winter picture, the horse in question is behind the pinto correct?

I would just say varnish roan. Pretty normal. For a long time Phoenix got really dark in the winter, but she has progressed so much with her varnish that she one gets darker in certain areas.

Yes, Buck is behind Cheyenne the APHA mare in the winter picture.