There is no test for dun yet, but if you test her, she's probably a bay w/ the dun gene (they can test for bay). She doesn't look black dun (i.e. Grulla) or sorrel/chestnut dun (i.e. Red dun), and doesn't appear to have any other dilutions (creme, champagne, etc). This would make her a bay dun, like her dam. Just a different shade. Also called Cougar dun and Peanut Butter Dun by some. But genetically, all are bay dun. She may have the sooty gene, as it wouldn't show up much on dad... but she may not. Hard to tell as such youngsters. They change so much for the first several years (it seems like forever since my girl has been progressively looking more and more red dun.. she is registered sorrel.. lol..).