So sorry to hear about your losses - over the years I have lost more chickens, ducks and geese to outside attacks than I can remember. One of the most common culprits that I have to deal with is the badger - I really don't like them too much!! The badgers tend to take away one duck at a time, and drag it through a hole in the fence - whereas whenever I have had a fox attack, it has left piles of feathers around the place. Have also had a visit from a stoat, as has a neighbour of mine, but they tend to take yougstock only, and to add to all of that, just recently, I have been visited by a sparrowhawk that pinched a couple of chicks from one of my broody hens in broad daylight!!!
Said hen now has only one chick left, and at feeding time yesterday, couldn't find the little one anywhere, and assumed that it had been taken as well. However, when I went out to lock up last night, there it was tucked up nice and warm under Mum - where it had been is anyone's guess!!
Chin Up - unfortunately, by letting our birds roam free and act naturally, we also have to contend with outside influences over which we have no control, short of miles of electric fencing!!