Thanks AVB,
I feel for your battle to keep your chooks safe, at least I don't have that problem here. I have no alternative now but to remove all the trees/bushes till I get rid of them. It is a shame because the yard looks good although a bit overgrown around the pond but I guess this happens with 20 years of growth. Just looking at some pics taken when that area was set up 20 years ago it is hard to imagine how it has changed, I guess that is why the possums like it