Sounds to me like the problem here is that the co-op is operating on the assumption that chickens and dogs can live harmoniously together. They can, and mine do, but it took a lot of supervision, training of dogs, and no doubt luck, to get to this point. (And if the 10 month old pup kills a chicken tomorrow, I will not be shocked.) I'd say that a co-op like this is going to have losses of other animals as well, assuming they have them, or acquire them. If that is understood to be part of the price of no fencing, fine. If they expect to be able to put half a dozen species together without some eating or injuring others, or even just chickens and dogs, they are being unrealistic.
As for the dead chicken around the neck -- it seems to have worked for some, but is no sure-fire solution. There is no shortcut here. Choosing the right breed and training the dog will be needed in the long run.
As for the dead chicken around the neck -- it seems to have worked for some, but is no sure-fire solution. There is no shortcut here. Choosing the right breed and training the dog will be needed in the long run.