This is really specific to a single question, it's not a duplicate meta post and for crap's sake people, it's meta, you can have a few uniques floating around.
That having been said, Recommendations for introducing kittens to adult cats had the original 8-vote answer quoting multiple lines directly from the source removed. There was much warning, hoo-hah, and opportunity given to the OP to paraphrase the text, but none was taken.
So I took the opportunity to paraphrase the text. It's below after the break.
Question is, what do I do with it?
Edit the original, deleted answer and post this paraphrase-ment into it, then vote to undelete it?
Post my own answer with this text in it?
Write a completely different answer with completely other tips.
Scrap it and run.
The article "Integrating Kittens with Cats" (W.V. Cats) provides intricate details on the procedure for introducing kittens to adult cats. According to the article, the summarized steps for introduction (backtrack to the prior step if there is an issue) include:
Keeping the new kitten / cat separate from the household for multiple days.
Providing scents from each feline involved to each other; transmitted through use of cloths. This begins the process of a safe introduction.
Non-interactive transference of each cat to the other territory to continue scent familiarization.
Visually introducing the cats for a few minutes, without physical interaction.
Feeding or rewarding the cats near the territory borders.
Introducing the cats physically under intense supervision.
- brief visitation
- continue rewarding with treats
- separate if fear or hostility is apparent
Introducing the cats for longer visitations
- multiple hours
- constant supervision
Allow unhindered interaction, but separate when unsupervised
Allow unhindered, unsupervised interaction
- allow only when kitten has reached 16 weeks old
- allow when all other steps are acceptable
It is recommended to visit the source article for detailed elaboration on each step.