Im very much a novice chicken-keeper and Im really not trying to teach my various Grandmothers and Fathers how to suck eggs....BUT!
We are in a foxy area and see foxes maybe 2/3 times a week further down our land. When we first got our chickens we saw a fox mooching round their run....they have a 7ft high run with a skirt but I don't kid myself that its fox-proof . The hens were locked in their hen house ( as we religiously do every evening ). Luckily Im a serial insomniac and our bedroom window ( always open) is directly opposite the hen house about 30 yards away so I heard Mr Fox scratching. I have one of those huge 1000 candle torches and I threw the window open, shone the big torch at him/her ( I saw her clearly), shouted so that my husband almost had a coronary and he took off sharpish ( the fox, not the husband!)
Same performance again 2 night later.
we haven't seen/heard Foxy nearby since.
Im NOT saying he hasn't sneaked up and had a look; maybe he has. Im NOT saying I have all the answers; course not; I expect to lose some hens at some stage. But our experience has been that at least our local foxes aren't as determined as some. Maybe there are easier pickings nearby ( there are actually!!), but I wonder if opportunistic foxes target easy kills first and only venture further when the easy pickings are all....dead