I am going with the other people and saying coyote for a few reasons:
1. Compairing the size of the pig/coyote to the other coyote, the legs look too long to be a pig.
2. The coyote is not even looking at the the other animal, if it was a pig i think the coyote would be keeping its eyes on it.
3. Im sorry to say, i still don't see a curly tail on it.
(This is my opinion and my reasons for it)