The Differences Between Bay and Chestnut Horses: A Guide.
Bay vs. chestnut — the fastest way to tell horses with reddish coats apart: Bay horses have black points (mane, tail, lower legs). Chestnut horses have no black hair anywhere. Field test: Black mane/tail = bay. Matching mane/tail = chestnut. Genetics: Bay = E/_ + A/_ (black restricted to points). Chestnut = e/e (no black …