I pretty much know nothing about color genetics because 1) it is so complicated and I don't really have the time to learn and 2) all Haflingers are chestnut so there really is not much reason to learn.
But I have been interested in Shyloh's light "eyeliner" and what that was. I was sure it had a name and after very little interweb research, I found it.
|See the lighter color under her eye?|
It is called pangare. It is a coat modifier that can lighten the hair around the muzzle, eyes, belly, lower legs, and inner legs. Ah ha! Makes a ton of sense. Shy does not have much pangare on her underside, but some Haflingers do.
|Not my Haflinger, this one was borrowed from the interweb. He shows lots of pangere effect.|
But it does explain the lightness that goes down her legs. She only has a slight sock on the inside of one of her back legs. Socks in Haflingers are discouraged; one leg is okay, but socks on all four legs or white going above the knees or hocks are strongly discouraged from breeding, per the American Haflinger Registry. Shy's legs get noticeably lighter all the way down. It's pangare (like when the moon hits your eye like a big pizza pie, it's pangare. . .).
Pangare can be seen on Shy a little bit in the following photos:
|Can see a little bit the the lighter color under her chest.|
|Lighter going down her legs.|
The purpose of pangare is thought to be a a form of camoflauge or countershading. It is found mostly in pony and draft breeds like Fjords, Haflingers, Exmoor Pony, Belgians and donkeys. This modifier can act on any coat color and varies in how intense it it. It is also thought to be a multi-gene effect.
A little interesting tidbit for your Saturday night.