Well. I do not mean to be heartless but if these are not someones pets, then they are wild food. There is enough to do before the bears are at your door than to drive yourself bonkers trying to help some mallards. So I had this friend vet once that taught wild life rehab and he told me, "Look, everything is food. Everything has to eat... rabbits and dove are natures Bologna, you will save it so something else can eat it. Decide what your time is worth." I reared up that baby rabbit.. it bit the tar out of me, I let it go and you know some owl had rabbit for dinner.