This is Prince, who is my horse out of my Thoroughbred mare by a Hanoverian stallion.
He's sucking on his tongue in the second picture, which is a little hard to see, so here is a picture from last spring. Orphans often suck on their tongues because they didn't get to nurse as much as they wanted as foals and they're so happy when they do get the milk that they never get out of the habit of sucking when happy. Prince will suck after a meal or a snack (peppermints are his favorite) and when he's happy to see his mom or dad. Foals with their mothers will nurse as often as every 20 minutes, while orphans are often on a 2-3 hour schedule around the clock.
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