I have been having this issue for a long time now. Whenever I place a forage pool in a flamingo or crane habitat and save the game, then when I load the game again the animals get stuck in the forage pool if they are using it. Their traversable area disappears and I get protestors.
If you are experiencing this issue, please feel free to contribute here: https://issues.frontierstore.net/issue-detail/63051
If you are experiencing this issue, please feel free to contribute here: https://issues.frontierstore.net/issue-detail/63051