Timing for integrating cats?
Over the past week, I’ve slowly tried to introduce my new 9 week old kitten to my 7 month old resident kitten. Naturally, my resident kitten was unhappy and hissed when they first met. I immediately separated them.
I’ve done scent swapping and am allowing interactions through a cracked door several times a day, every day. My resident kitten hissed a few times when I first began this, but has since subsided after a day or two.
They now interact through the cracked door by pawing at each other with seemingly no aggressive behavior (no hissing, growling, pinned ears, puffed tailed, etc.).
I’ve also done some positive association through feeding times. They both eat by the door next to each other without incident.
When will I know when it’s safe to take the next step in integration? I don’t want my resident cat to hurt the new kitten since she is significantly bigger than my new kitten.