Originally Posted by Cowgirl Up
I also believe he's a Sorrel paint.
People's opinions differ on the difference between sorrel and chestnut. Some think they are the same, others call one for Western horses and the other for English. Personally I believe if the mane and tail match the body color of the horse it's a Sorrel. If it's lighter it's a Chestnut.
Sorrel and chestnut ARE the same colour, they are just different shades being called different names based on area and disciplines.
A sorrel is typically the lighter, orange shades of the colour, while chestnut is the dark, more brown colour (also referred to as "liver chestnut" if even darker). A sorrel/chestnut with a light, blonde-coloured mane and tail has a gene called flaxen and is just called a flaxen sorrel or flaxen chestnut.