A few days ago, a cat appeared in our garden and was very adamant that he was here to stay.
From pretty much the first day, we found poop on the lawn which looks like it is his. Somehow his instinct to bury his poop is absent or overridden/suspended by something else. He also does it half-way in the garden area where he usually sleeps, and my door—pretty much smack in the middle of his territory.
Background information: He had no collar, tattoo or chip that would provide any hints at ownership, but he appears clean and in good health. According to the vet, he is male, neutered, about a year old and without any apparent health issues.
My guess is he has not been homeless for long, and that he either ran away, was abandoned or rode as a blind passenger in some vehicle (he is very curious and thus prone to getting trapped in any enclosed space). He doesn’t seem to have anyone else taking care of him: the first time I fed him, he appeared starved; after that, his appetite returned to normal.
I am currently staying in a furnished apartment. My landlady lives in the main building, my apartment is in an annex, but we share a garden. She doesn’t want him in my apartment, so I only let him inside when I feed him. Other than that he has been inside only twice, hence I cannot tell for sure if he is house trained (he always did his business outside). It also means he is pooping on my landlady’s lawn, which she is not very happy about.
I have seen two other cats in the area, one of whom he engaged in a territorial fight with (the second other cat was sighted a few days before he showed up).
What causes him not to bury his poop—could that be a way of marking his territory? And what can I do about it?