We kept chickens a few years ago, in our garden. They were not your standard red rooster tpye chicken, they were small ones (Silkies, or silky's). An unusual breed apparrantly, they had what looked more like fur than feathers, and are the only chickens with black skin underneath. Lovely birds, and they became real pets, used to come up to the back door and everything. Were a pleasure to look at. We had a big enough garden, and lived rurally, but to be honest, I dont see the problem witih keeping then in a back garden as long as they have enough room, which by the sounds of it they will. THe eggs by the way, were lovely (smaller than usual, but lovely).
We fed them scraps, nothing else was needed, we had six altogether.
Looking after them was very easy, clean out the hutch/pen every day, use the waste for compost. Being small hens, they are not messy. We did get some standard red rooster type birds also, but oh my god what a difference,. They were big messy and noisy.
Considering keeping 50 to 60 racing pigeons in a small back yard, is common place, keeping 6 happy and contented chickens would be no big deal in my opinion. Do look at silkies though if you decide, its nice to have an unusual type hen, and they are very pleasant. I woul dagree, that you might not want a cockeral to keep your neihgours on side, but I actually think many woul dnot object to what is efectively a bird call, you would need to check with them though.
Why did we stop ? Well, the wife go pregnant, and as I was away all day and travelled quite a bit at the time, she was looking after them. Not that it was hard work, but the idea of a pregnant women cleaning out chicken manure did not site well with us, so we gave them away. We still visit them
, they went to a local petting farm...
PS, with regards the chicken run, I would let them run loose around the garden, and just keep a small pen for them at night. A small number of silkies are not messy.
Wexfordman