Probably the most well known blonde around is the handsome
and happy Haflinger, (you can’t meet one without falling in love)
and their half-brother the Italian Avelignese. Many of the
blondes lean towards the stout side an in fact this coloring
seems to be disproportionately found in draft breeds.
The flaxen gene is a trait which causes the mane and tail of
chestnut-colored horses to be noticeably lighter than the
body coat color, often a golden blonde shade. Manes and
tails can also be a mixture of darker and lighter hairs. …
Studies on Morgan horses have indicated that the flaxen
trait is inherited.