And here's some pics of my setup. I do not free-range, and my girls are happy. To attain a predator-proof setup you must use nothing less than 1/2" hardware cloth...everywhere.
(Run is now 'wrapped' in plastic greenhouse sheeting for the winter)
I wish you all the very best!!
Sorry for your loss, but now that the foxes know where to get 'dinner' they will be back again and again. From your pic I assume you let your flock free-range? With the predator issues that you have you may have to build a regular chicken run reinforced with 1/2" hardware cloth all around, the...