Some background info. 2/3 weeks ago we adopted 2 cats, Mother and Daughter. At home we already have a mother and daughter.
The day after the new cats arrived, we didnt know our existing resident cats were outside door[luckily had barrier in place there, to stop new cats running out] and Maggie, Mother new cat, met Ria, mother resident cat.
Maggie was hissing at Ria and growling. Since then Ria hasn't come upstairs, if she has only in middle of night a week or so ago.
Since then Tia[resident daughter cat] has met both Maggie and Mille through the barrier which is now in place on the top of the stairs as Maggie and Millie have run of that now [because the other two arent coming upstairs anymore
]
Up until recently Tia and Maggie[Millie tends to be asleep, so doesnt really have intros...and Ria doesnt go near the stairs anymore] have met and things have been going ok, the last good intro was Maggie and Tia sniffing noses, but then getting spooked cos someone walked on the landing [
]
Anyway, since then Tia has been very skittish and tends to run when one of the new cats appear.
Just now they met again at the stairs and there was hissing from one of them...Couldnt see who.
Why all of a sudden would the hissing occur?
And is there anything we can do to make resident cats feel relaxed/settled[we have feliway] and/or speed up the process POSITIVLEY.
We're using the wizzcats method, to the best of our ability...