These are rabid creatures. You will need 50 lvl 1000 gigas and 100 rexes. You need to use a tek rifle to knock it out, a minigun also, but for the best a railgun. Youll need also 5000 quetzal gunships. Go on one ship. Get some fighter jets u can shoot on. (I highly recommend griffins) Then go out with one and go shooting with one of those weapons with your 10000 tribemates. Then go quickly, shoot the dodo, and fly up fast. Then dive down for easier targeting. Repeat 100000000 times and then feed it element, element shards, or boss trophies. Then in 5000 days when youre dead, it will tame. Happy taming :)