Unflappable magpies

I have a small hobby vinyard on my farm(about 300 vines), which I have to keep netted to keep the birds off the fruit. Nets can trap birds if they get tangled, I regularly check mine. There are holes in the nets near the ground, caused by rabbits, but most birds can't find the holes. If a bird does get in after the fruit they get panicked when I try to chase them out, usually silvereyes, currawongs and crimson rosellas.

Magpies don't eat fruit but like my vineyard for the soft soil full of curl grubs. Recently they have been going under the nets after the grubs in the soil. If I come near they fly around at first but then drop to the ground and calmly walk back to the hole in the net to make their exit. They obviously remember exactly where the hole is and have the presence of mind to orient themselves and not panic which would cause them to become disoriented. I haven't seen any other birds which can do this so well, and I have worked a lot in vinyards under nets. Currawongs definitely can't, they just fly around and use brute force to try and push their way out, though currawongs are pretty crafty birds. Barring crows I don't think there are any birds as clever as magpies in Australia. They don't learn the location of the holes through repitition - once they use a hole they know exactly where it is.