its pretty difficult to say who's gonna be the winner. Even though the Tyreali really is the underdog and he has my sympathy because unlike the Cawchap, he has feeling and all, i'd have to bet on the Cawchap. It can fly to escape the attacks and move fast as hell. It doesnt know death (and fear) and has quite a lot of claws and teeth. Plus what you dont see on this picture is the ...well, "5th limb" on it's back (between the wings), which 'shoots' some kind of acid stuff.
The best way to kill a Cawchap is from a far distance; shoot it. A melee fight is almost unwinnable. Maybe a Tyreali Accomdanih (the big ones, in this drawing you see an Aluerkawo) has a little chance.

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