Macadamia nuts ransacked

Cockatoos and rats do seem to enjoy macadamia nuts. Not quite sure how to protect the nuts from either of them, other than chase away cockatoos when I see them. As for rats....
They mostly come at night... mostly.
We made the mistake one year of harvesting all the nuts we could see when we saw signs of rats eating them... but that was a huge mistake. The nuts weren't fully ripe yet. Their shells hadn't hardened yet, and most of them went mouldy. The ones that didn't go mouldy were small and rubbery inside. Not pleasant to eat.
So, it seems to be a very fine balance between leaving the nuts on the tree long enough to ripen completely, while beating the rats and cockatoos to the punch.
It's all a learning experience. Observe. Adjust. Repeat.