First off, I got this directly from a qualified vet who also happens to keep chickens himself. Secondly, I would assume that you wouldn't put the box right next to the car, so the exhaust should have plenty of time to cool. Third, I said I had never done this before but I HAVE witnessed the "peaceful" collapse of a co-worker upon exposure to Carbon Monoxide.
I understand chickens tend to calm down when they are in the dark, so I don't understand your objection to them being in a "dark box".
The fact that "this" Carbon Monoxide is "nothing like" the stuff you get from household gas appliance malfunctions, etc. is simply not true - Carbon Monoxide is Carbon Monoxide. Yes, there may be some odor from the tailpipe exhaust, but you aren't shoving the tailpipe down the bird's throat.
I apologize if I did not include the suggestion that the car/tailpipe should be "some distance" from the box to ensure that HOT exhaust fumes aren't going directly into the box - I am clarifying this now. As I said in the beginning, I have never done this but it was recommended to me by a veterinarian as AN OPTION. The OP wanted AN OPTION that did not involve cutting anything off or snapping anything, here is an option. I think it would be much better than the oft-suggested CO2 method because of the lack of "panic" mechanism that can be induced in the beginning stages of CO2 toxicity. CO is a much more peaceful way.
Of course, you might be able to go buy a tank of compressed CO gas from an industrial supply place, so it wouldn't smell like car exhaust, but that would probably cost WAY more than a vet visit and would likely end up with the OWNERS getting killed!!!
For those of you who think the chicken cannot suffer after being decapitated, there is PLENTY of science behind the idea that a head can live for several seconds after being removed from the body. I would think the neck nerve endings might hurt, I don't know, I'm not a biologist. But CO poisoning is TOTALLY PAINLESS. That's what the Original Poster was looking for, as I understand it.
I'm done with this thread - I offered A PAINLESS OPTION and I'm sticking to it's validity. Feel free to argue more about it.
I understand chickens tend to calm down when they are in the dark, so I don't understand your objection to them being in a "dark box".
The fact that "this" Carbon Monoxide is "nothing like" the stuff you get from household gas appliance malfunctions, etc. is simply not true - Carbon Monoxide is Carbon Monoxide. Yes, there may be some odor from the tailpipe exhaust, but you aren't shoving the tailpipe down the bird's throat.
I apologize if I did not include the suggestion that the car/tailpipe should be "some distance" from the box to ensure that HOT exhaust fumes aren't going directly into the box - I am clarifying this now. As I said in the beginning, I have never done this but it was recommended to me by a veterinarian as AN OPTION. The OP wanted AN OPTION that did not involve cutting anything off or snapping anything, here is an option. I think it would be much better than the oft-suggested CO2 method because of the lack of "panic" mechanism that can be induced in the beginning stages of CO2 toxicity. CO is a much more peaceful way.
Of course, you might be able to go buy a tank of compressed CO gas from an industrial supply place, so it wouldn't smell like car exhaust, but that would probably cost WAY more than a vet visit and would likely end up with the OWNERS getting killed!!!
For those of you who think the chicken cannot suffer after being decapitated, there is PLENTY of science behind the idea that a head can live for several seconds after being removed from the body. I would think the neck nerve endings might hurt, I don't know, I'm not a biologist. But CO poisoning is TOTALLY PAINLESS. That's what the Original Poster was looking for, as I understand it.
I'm done with this thread - I offered A PAINLESS OPTION and I'm sticking to it's validity. Feel free to argue more about it.