Q: What is ear tipping?
A: Here is example of an ear tip. Removal of the top 1/4 inch of a cat's left or right ear tells colony caretakers, veterinarians, and animal control that the cat has already been trapped, spayed/neutered and vaccinated. Ear tipping is done at the same time the cat is spayed/neutered. The cat is under anesthesia, and the process is completely painless. An ear tip can be easily seen from a distance, and it allows caretakers and animal control to easily identify a TNR-ed cat and know that it is not necessary to trap the cat again. An ear tip is the universal sign, nationwide, of a TNR-ed cat.
All cats in the Washington Heights Cat Colony are ear tipped to show that they have been vaccinated and spayed or neutered. This helps Colony caretakers quickly spot any new cats that show up in the Colony (newcomers won't have the ear tip). New York City Animal Care and Control does not pick up ear tipped cats, because the ear tip indicates the cats have been TNR-ed and are sterile, vaccinated, and being cared for.