From the neutering a cat that isn’t yours thread - I saw a number of mentions about clipping or notching ears. Is that a standard system in North America?
The barn where I board got a couple of barn cats from a feral spay/neuter, find safe non pet homes organization as our mouser disappeared last October. I thought the missing ear tip on the tom and the slice on the queen’s ear were cat fight injuries but now I’m wondering if they were deliberate.