Hi every one. My first post here. I'm trying to set up an urban permaculture system on my large suburban block in Epping, Sydney. But my four beautiful chickens which we had for 3 years were all killed by a fox (I think) and many of the trees we have planted are getting close to dead because of possums. We have had no produce for ourselves in the years we have been trying so I am glad there is a greengrocer down the road still and we are not really dependant on our own produce (but would really like to be self sufficient). But the birds and possums and now foxes are doing very well by us. Normally, I am a live and let live sort of person but these recent events has caused me to discover my inner axe murderer when ever I think about foxes and possums. What are people's humane(ish) solutions to these permaculture vandals? The chickens (replacements) are mostly free range in the day and at night they have a shed where they sleep which is secured by an internal screen door as well as an external solid door which is locked by key (foxes are smart but not that smart). I am building a 5 foot high gate for the driveway. I am thinking to build something portable for the chickens to scratch around the yard during the day but sort of enclosed so they can be safe if unwatched. Has this already been invented by some one? Do you have the plans and/or photos? As for dealing with the possums we've tried quassia bark boiled with soap and sprayed around but to no result. Same for Possoff. We have also tried glaring darkly in their general direction sometimes with running and hand gesticulations and some screaming but surprisingly it is not working. Anything more effective will be gratefully received and put into practice immediately.