What is it?
Community cats that who are not socialized and will not likely be adoptable through conventional shelter or rescue systems are trapped, spayed or neutered, vaccinated, and eartipped (the universal method of identifying a neutered and vaccinated community cat in TNR programs), and then returned to their outdoor home.
Trap-Neuter-Return, also known as TNR, is viewed by many as a humane and effective alternative to euthanasia for cats that who would not be considered adoptable by standard criteria due to their lack of socialization. TNR is said to contribute to a stable social community or colony of cats who are typically cared for (fed, provided rudimentary outdoor shelter) by volunteers in the community. Some experts argue that TNR projects reduce the number of Community Cats over time, while others argue that, at best, the population stabilizes over time.
Citizens who object to Community Cats because of property damage, nuisance behaviors, and impact on the environment/wildlife argue that these problems will not improve as cats are still living in the community. Others argue that if colonies of spayed/neutered cats are carefully managed by volunteer colony caretakers that these impacts in the community can be minimized.