I moved into my new place last fall and a local feral cat was hanging around so I kept cat food out for him, no big deal. I figured I would trap him at some point and get him neutered.
Then he got caught in my shop so I trapped him to move him out and finally got a good look at him. I saw the clipped ear and thought great he is already snipped.
He has slowly learned to sort of trust me and will occasionally let me pet him and he hangs around the barn, but he does NOT get along with my other, now neutered, former ferals (this was 1 clue that something was up - my 3 boys all get along pretty well and 2 were neutered as feral adults).
Then, a few weeks ago I got a good look at his back end as he walked away from me one day and thought I saw intact parts . Then yesterday he decided to be friendly while he was eating and I got a chance to feel around back there - yep, everything is still there.
I don’t know if the ear was actually clipped or if he lost the tip in a fight or with another injury, but now I will plan on getting him truly snipped sometime in the spring.
So, unless you KNOW the cat with the snipped ear is from a managed colony don’t assume they are neutered.