The top is a jzik’hé, which is similar to a large rodent.
The middle is a k’hiv, which is slightly smaller than a horse but much bigger than ostrich. Good for riding by elves and tall fae, but not strong enough to bear someone big like Loracaz III.
The bottom creature is a k’het, a beast of burden with varieties ranging from just smaller than ox to bigger than a yak. Most varieties do not have horns. They’re great for tilling fields and pulling carriages, but are not generally ridden or ranched.
While not generally hunted, eating these creatures is not forbidden. If they come to the end of their days, they are not left to waste, though they could be left for dragons, if any are around.