Why does the little horse "think it queer" in the poem "Stopping By Woods on a Snowy Evening"?

I am not sure exactly how intelligent horses are, but like many domesticated animals, they are creatures of routine. So, in Frost's "Stopping by Woods on a Snowy Evening," the horse finds it unusual to stop at that particular place, "without a farmhouse near/ Between the woods and frozen lake" (lines 6-7) because this is not the narrator's routine with his horse. The horse is accustomed to a destination such as a farm. The horse may also be accustomed to stopping at the lake for some water. This narrator is stopping in the middle of nowhere, from the horse's perspective. It is also a snowy evening, and while the horse is probably not suffering in this weather, stopping like this on a cold night might also be unusual. One gets the impression that the narrator does not often give in to the impulse to stop for a quiet, contemplative moment. Thus, this is outside of the horse's normal routine and he thinks it odd.