Well it took them this long to escape, but they did all get out in various stages...
The first escape was pretty interested. I went outside to get some mint for my raspberry-mint iced tea, and saw four chickens eating bugs around the compost bin. I called for backup (Avi) and we put them all back in, thinking they squeezed underneath the netting gate, as they were some suspicious Farrah-coloured feathers there. We reinforced the gate and went back inside.
I remembered my tea, and ran out to get mint. I found myself looking at three more chickens outside, eating bugs from around the lovage (looks like celery, tastes like...something). So we put those three back in, and did some sleuthing. This is what we found:
A hole!! I did some research, and found that at least Farrah's head will fit out if enticed, and while it may be a bit tight for a chicken-butt, if they really wanted to, they could get out through there. So, the wood was placed between the pallet and the netting, and a rat-trap will be placed there tonight to see if it was gnawed through by a rat or something else. It didn't look as if the chickens would have chewed that, as it's more gnawed than pecked. Plus I think it is improbable. Plus, they live a happy life in the fence. Why would they even want to escape?
Although now that they know about the G-A-R-D-E-N (Shhhh they might be listening!) maybe they will explore more often. We'll find out.
Two eggs, One broken shell.