Trap - neuter - release (TNR) programs, in which feral cats are sterilized and fed in
unconfined colonies, have been advocated as a humane and effective way to reduce the impacts of feral cats on native wildlife.
A nonlethal approach to controlling cat populations, known as trap — neuter - release (TNR), involves trapping and sterilizing cats and returning them to
unconfined «
colonies,» where they are fed daily by volunteer caretakers.