Introducing (adult male) cats
About a week and a half ago, I posted about a cat that seems to have adopted us. marie73 gave a helpful link to an article about introducing cats, but I was hoping to get a little feedback from people who've actually done it.
To recap from my last post: we've been "adopted" by a beautiful cat I've seen around the neighborhood before. Since my last post, I did take him to a vet. He's had his shots, they told me he's otherwise healthy (though a little skinny) and has been neutered, and they estimated he's between 2-5 years old.
I have another cat -- he's an indoor cat (he doesn't LIKE going outside), also male. He's had plenty of opportunity to see, hear, and smell our adoptee (now named Ghost), but they're still not getting along. We've moved from just feeding Ghost on the porch to letting him come inside when he seems to want to, but only at night. We've done this four times now. Twice, he was in an enclosed area away from our indoor cat (Bilbo). The two other times, he was allowed to wander the house where Bilbo could see him. The two of them haven't gotten very close to one another, but whenever they see each other, they hiss and yowl. Not CONSTANTLY -- just every so often they'll take up yelling across the room or something, or glance over and hiss. Ghost is not a constant presence indoors and I think may never really be. He's an outdoor cat and we're content to allow him to be that. But Bilbo seems very unhappy with him around and even when he's not here, it seems to me as if he's been kind of sulky and less personable than usual.
Here's another odd thing: Bilbo will not allow his humans to come near him when Ghost is around. He hisses and swats at us. Ghost, on the other hand, will let himself be cuddled even while yowling and hissing at Bilbo. I've never had more than one cat before, so I'm wondering -- is this something the two of them just need to get used to and work out for themselves, or are there additional steps I should be taking to make it easier for them?