Create custom animal spawn points. Upon death a timer will activate to re-spawn the animal. Has a built in controller to keep the animals close to their spawn point and to control their behavior in general. Unload the plugin and all animals will be erased, and upon server start animals will be re-spawned at their designated location.
Note: Occasionally the animal will run away after being spawned. It will return to its area usually in less then 1 minute then it will just wander...