I would never put a warm blooded animal in the freezer to euthanize it, that is cruel. Reptiles, yes. In fact a reptile vet told me that is the best way to euthanize them. What would be better for a chick, cold and shivering for who knows how long and terrified, or whack! Off with the head, instantaneous. From time to time the animal rights people get all up in arms about how the hatcheries dispose of unwanted male baby chicks because they are said to put them through a grinder. Sounds gruesome, but in actuality, that would be an extremely quick death for a baby chick. There I've said it and it is blunt.Actually, I hear extreme hypothermia and freezing to death is the best way to go. You do get extremely cold and shiver for a few minutes, but then the circulation is decreased to your extremities in order to maintain your core temperature. About the time that happens, you feel significantly warmer and cozy before drifting off to sleep for the final time. Not a terrible way to die.