TNR stands for Trap-Neuter-Return.
TNR is a non-lethal method to reduce the feral cat population.
This method of controlling the cat population is remarkably more cost effective than trapping and killing feral cats.
TNR costs roughly $50-$60 for the entire process, while it generally costs roughly $100-$105 to euthanize a cat. There are even a few TNR programs throughout the U.S. that cover the full cost for TNR, making the expense for the individual trapping the cat $0.