Yes. Horses have been known to eat tree bark, but the reasons they eat it are because there is little or no food to eat, or they are bored.
The reasons that horses eat bark or chew bark off trees is not solely because they lack food or have nothing to eat, there is a multitude of explanations, although, if they are starving they will resort to what is necessary to survive.
Another possibility is that the horses in question could potentially be lacking some form of nutrition (i.e. salt/minerals) which can be location dependant. Some where I have read, but check with your local vet, that it could be related to copper deficiencies. In most cases, given that the horse is fed properly, it has to do with boredom.
what! horses graze on grass, thay eat horse feed, fruit and veg, and hay. they do not eat meat, tree bark, or candy...
grass
Grass.
Horses can typically eat the bark of Sumac trees with no ill effects and it is not listed as being toxic. However it should be noted that if horses are allowed to strip bark off of trees it can and will kill the trees.
They eat grass and leaves from small bushes. However they are known to eat bark from a tree.
=No if horses eat tree bark the tree WILL NOT die. In order to kill a tree you must go through at least 8 layers of the tree, the bark really only protects the inner parts of a tree from animals and the weather. The horse however may have a problem though.=
No, gray foxes do not eat tree bark.
I know why you want to know this (it is one of the riding level questions on howrse.com) I just passed level 1 with grass or tree bark!!!
Deer LOVE to eat the bark from a sap tree....the tree that gives maple honey.
Your horse is fine, some horses do eat bark. if you still do not feel good about this you can just put a gate around that certain tree
I Know that Mooses and deer eat tree bark... And maybe otters, but I'm not sure.
Beavers eat mostly tree bark and the soft tissue inside of tree bark.