I had a terrible 'freak' accident in the canary hen aviary. The hen's breeder band got caught on a small attachment wire (I cannot figure out how it came unwrapped to protrude.) When I discovered her clinging to the cage wall I discovered that she has fought so hard to be free of it that when I got her leg released, the foot was severed, held on just by one vein or ligament. I slowed the bleeding with corn starch and have held her firmly wrapped in a cloth to keep her from trying to shake it off. It is terrible. She cannot survive without her foot. Does anyone know of a painless euthanasia method?