Protecting our natives from feral predators

Son helped yesterday doing a concrete plinth under the delivery gate so feral animals cannot dig under the gravel that was below the gate. he’s done a great job, finished it late yesterday in the rain on dark. Covered with plastic to protect it from the rain. Extra strengthing put into it to carry the weight of trucks that use that entrance.
The solar panel for the front electric gate seems to working well so far this winter!
Just pebbles that can catch the rollers can stop the gate from working, needs checking each night to ensure the security of our wonderful native fauna.