I guess I'd get rid of my laying flock, by either eating them or selling them, which if its an emergency, I shouldn't have a problem doing either and I'd keep my araucana projects because it'd be easier to feed and I could probably do it by hauling in weeds, grass and scraps, with a minimum of grain.
I think I'd free range the water fowl, because they could do my weeding in the garden; thus saving on feed and making the garden more productive........also, less chickens and more guineas =s better bug control.
These are some considerations we should pay attention to. We may have to face it one day. We may have to face a lot one day.