I found a cool way to get infinite meat and tallbird eggs. First, find a tallbird nest. Make sure the Tallbird is dead, because it will be easier to do things later (tallbirds do respawn at there nests). Then spawn in an optimus pine. Lead him over to the nest, then run away leaving him at the nest (if you get far away enough he'll unaggro so even if its by your camp you should be okay). Wait a little while, and periodically check on the nest. The tallbird will attack anything near its nest and the optimus pine is near invincible while doing tons of damage. It kills the tallbird leaving the meat and egg for you to collect (like I said earlier the optimus pine unaggros on you as long as you dont chop down any trees in his vicinity, so you dont have to worry about him while collecting). Just visit the nest every once in a while, because the mobs will only fight eachother if you can see them. That is all and happy farming!