TNRM stands for Trap-Neuter-Return-Manage, the most humane and effective way to reduce free-roaming cat populations. The cats, who typically live in a group called a “colony”, are trapped, vaccinated, spayed/neutered and returned to their original territory. In many circumstances (the “Manage” stage), volunteer cat caregivers monitor the cat colony, providing the cats with regular food and water, and, if possible, medical attention when needed.
About 70% of cats in the US that go to the animal shelter end up being killed, and that already-high number soars even higher when only counting free-roaming cats. Because many of these cats have never lived with people and are not socialized, they do not do well being adopted out.