We use the word “eartip” to describe when a small portion of the tip of a community cat’s ear is surgically removed during neuter surgery, as part of a Trap-Neuter-Return (TNR) program, to show that the cat has been neutered and vaccinated. Eartipping is done while the cat is anesthetized and is not painful for the cat. Eartipping is the most effective way to identify neutered community cats from a distance, to make sure they are not trapped or undergo surgery a second time.