My four young ladies, providing us with four eggs a day.  A couple of year ago, I bought two black hens at the local agricultural show.  One died myseriously so I replaced it.  Then the second was attacked by a fox in broad daylight.  One day a neighbour arrived at my back door with a terrified chicken in her arms.  She had arrived in time to see the fox chasing the chickens around their run, unfortunately one had died of fright.  My one remaining chicken was then taken by the fox one windy October Sunday while we were out for a walk.
I had to wait until the spring agricultural fair to buy these four.  No sign of Mr Fox but as the nights draw in and it grows colder I have no doubt he will be back for his take away.  Hopefully my defensive measures will keep him out this time.
This site is American but I've found it a great help.  Only problem is translating disease names into French and finding certain treatments here in France.