I think chickens understand a lot more than they are given credit for. It’s just that they aren’t dogs and don’t have the need to please gene!Gave my girls another hour of foraging in the yard tonight. When it was time to go back into the run, they responded to me telling them "Go on, go back in". And that's just what they did. I guess chickens can credit understand verbal commands. I think. LOL
I’ve had a few that knew their names. They wouldn’t necessarily come when called, but you could tell they understood I was talking to them and not the Flock in general.
 When I was referring to wrong kind of wood, I meant natural tree wood (pine, spruce, oak, etc...) that I might have cut down out in the yard. I have never used processed lumber - treated or not - in my hügelkultur raised beds.
If someone is trying to get the "organic" label on their produce, I think the standards are much higher. I just grow regular food to eat, not "organic" food to their standards. Although I attempt to keep any chemical products out of my food by using natural chicken run compost and not using chemical fertilizers. I am not opposed to someone using bagged chemical fertilizers, I just chose not to as my plants seem to be doing fine growing with the chicken run compost.
Had to read that twice to understand it once! Most of us Americans are thinking of temps in Fahrenheit, not Celsius. So, when you mentioned summer with weeks of high 30s, I incorrectly assumed 30 F, not 30 C. Big difference! Good thing I saw you live in Perth, Australia, and was able to reorganize my thoughts.
