I have a coming 3yo WB colt who was born on the farm and has never left for more than a few hours at a time. He primarily lives out, with a large run in, free choice hay or grass, and good gelding friends of all ages.
For pretty much his entire life, he’ll chew on the edge of his feed bin (corner feeder or tub) while he’s eating breakfast/dinner grain. He’s not arching his neck or sucking air, he just takes a bite of food, then chews the bucket a few time while chewing the grain. He does not chew at all when he’s not eating. He’ll also commonly paw with either front leg while eating, but again, only when eating grain. None of this behavior when eating hay or not eating at all, even when stalled. (He is fed Triple Crown grain, soaked beet pulp, and a biotin supplement. We also add mineral salt during winter months)
No other horses on the property exhibit any of this behavior, so it’s not like he learned by watching.
He has a stress-free life, as far as it goes, and is quite healthy, fat, happy, shiny (though smaller in size we were expecting) and doesn’t seem ulcery in any other regard. Again, this behavior isn’t new. If it’s just a quirk, that’s fine. Though I’m not loving the wear on the buckets, and it can’t be great for his teeth.
But, I do worry that maybe he’s uncomfortable or ulcery, and I should be trying to figure out a root cause?
Thoughts?