I have another idea until then, perhaps it is a riskier one. Though it would require someone with experience in domesticating cattle animals.

[ And an environment they could control their breeding. ]

Korra and I were speaking about the winter. I thought it was too faraway to be an immediate concern, but a month has passed since our conversation and we should not grow so certain about the future.

[ Relying on foraging and hunting would only work during the warm seasons, after that they will be trusting blindly the tree generosity to provide food. ]