Looking for a good path finding/obstacle avoidance for fish and birds

Hello guys,

Does anyone here knows of a good solid solution for a path finding and obstacle avoidance system for fish and birds? I am working on a game full of fish and I would like to find a solution instead of having to create one from scratch.

Please let me know asap.

Regards,
Carlos

 

So, no one here knows about any solution for this specific situation? I can't believe it!