Probably better to feed them the mulberries in controlled quantities so they don't over-eat. :)
Your chicken housing can either make the job easier or make the job harder. It's worth putting the effort into good design.
Here are some coops I like to help you get the design wheels turning...
Better to put the tree outside the run so that it will grow to shade the walls. Especially if you have room to put it on the western wall since the afternoon sun is usually the hottest.
A tree and the wire cage necessary to keep the chickens from destroying it while it becomes established would...
Welcome to BYC.
A quick Googling tells me that Sydney is a warm climate so this is very concerning:
Chickens tolerate cold much better than they tolerate heat and the greenhouse effect of a clear roof in a warm climate can turn your coop and run into a rotisserie. Think of how a greenhouse...