By the same token, though, there is no evidence that catch - and - kill will reduce feral cat numbers in the US either. (outthefrontdoor.com)
The «Neuter» in Trap - Neuter - Return is the key to solving the pet overpopulation problem because TNR is, above all, a population control program that reduces and controls feral cat numbers through sterilization. (torontostreetcats.com)
This approach, called «TNR» (for trap / neuter / return), is the most efficient and humane way of decreasing feral cat numbers and stopping the euthanasia of these cats at shelters. (nocoferals.org)