I've had chickens before and am sad every time I look out of the kitchen window to a hen-free garden. Problem is that we have soooo many foxes here. They sleep in the sun in my back garden, and lazily trot away when somebody comes outside.
Now I'm thinking of investing in an Omlet Cube to keep them safe ... plus pinned down by superstrength fence pegs. The kids are all very keen to get chickens but I don't think we could cope with a major fox attack. It's a big investment (£>900 for a house + 3m run eeek) which I'm saving up for in the spring, but I'd be very grateful to know anyone's tested them in a fox heavy area, and how it's worked out.....