According to the ASCPA, The past and current strategy of “catching and killing”, or “catching and removing” free-roaming cats has failed. Their numbers will continue to grow, but with TNR (Trap-Neuter-Return) efforts in place, the feral cat population will stabilize. TNR is the strategy of reducing the numbers of feral cats in the community by trapping the cats, bringing them to a clinic to be spayed/neutered, and returning them back to their home range. This process helps to control the population by preventing the vacuum effect, reducing the numbers of litters, population decreases as feral cats live shorter life spans than inside cats, and annoying behaviors like howling, fighting, marking territory and subsequent odors will stop or decrease dramatically.
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