What is the LD injection chris? And can the average joe get access to it?
I'm also assuming that the use of cage combs corner any caged moggy whilst you administer or are we talking a more hands on approach?
I personally didn't administer an injection. It was done by a vet. I'm not sure what the AI was, as different ones have been used, but it's basically an overdose of anesthetic.
I can hear the cash register, going kerching, so I'll elaborate.
I have never dealt with feral cats, for free. My pest management solutions cost the client, or they kept whatever the problem species was.
Taking Tiddles to the vets, was factored into the price, as I believe that this is one of those sensitive jobs that requires an extra level of care when dealing with the customer, and any potential failing in PR. Explaining that you're going to send Tiddles to Rainbow Bridge, via a trained practitioner of veterinary medicine, is a much easier pill to swallow than dropping him in a water trough, or sticking 38gr of lead behind his ear.
People want to see humane treatment. Even if a rimfire round will do the job quicker than an LD, it's all about perception. Perception is reality to most people in the world today.
Anyone dealing with feral cats on an amateur basis, shouldn't really be discussing it on an open forum IMHO. They know what works and what doesn't and it sure as hell shouldn't be broadcast.