We gave had birds here fir nearly 13 years and never had any issues. Weve had loads of babies over the years and lost none to preditors. The fox can climb. So an open top here is not possible.
Our hens were the other side of the big shed with an enclosure like the ducks have. The neighbour's shed butts up to the fence the other side so it felt very safe. But the fox got under the shed and there was a space between the fence and flags at the base of the run. The girls had been making dust baths. I had not given it a thought. I put them in every night but the door had recently broken so the coop had a temporary one on. The fox tore it off. The girls didn't stand a chance. My heart breaks and it's even worse because I couldn't find Gwendoline but betsy and marigold were left. It was a mess but I cuddled what I found it was so upsetting. I have had meat birds grown from the eggs hubby has killed them and I've processed them. We have a rule if you lay you stay crow you go. As were in an area that won't let us keep the roosters. So even after that were both still devastated and in tears over the loss. It's not just that our little friends are gone, so has our main source of eggs and also fertiliser for the garden. So a big loss all round.