Buns and cats can coexist, and even be friends, but it depends on the personalities of the animals.

You probably want to supervise their first meetings, to make sure they don’t hurt each other.  There will probably be some scuffling and chasing while they sort out who is in charge.

Make sure the bunny stays away from the cat’s litterbox – the dust from the clay-based litters can cause respiratory problems.

i would suggest that you would keep the cat and the bun at a distance.(just in case)

How does your bunny and cat react right now?   How large is your bunny, and does he seem scared of your cat?   Sometimes rabbits can actually terrorize cats, but it sounds like your cat can also be dangerous to your rabbit since he actually killed a pigeon.   So you will not be able to leave them alone unsupervised.  If a bunny is scared enough, and being stalked by a cat, it can cause serious health issues due to stress – like gi stasis or even shock.

Here is a link to cat/rabbit introductions on the HRS website http://www.rabbit.org/journal/2-11/cats-and-rabbits.html

We have a happy cats / bunny/ gecko household!  After having Jessica w/ the cats since Jan., I’d be very comfortable (and often am, unbeknownst to the hubby) leaving her alone w/ the kitty beasts.  Her biggest problem is she tends to cocoa puff and pee on the bed/sleep areas.  Maybe it will be better after she gets spayed (I’m waiting on my tax check).

I have had mice in the house…uninvited ones…and Phoebe my aircraft carrier cat has hunted them.  I usually got them away from her b/f she killed them.  She just played w/ them.  One of my cats, leashed, tried to go after a pigeon.  I feel that alot of the hunting is inbred in cats and their genes.  I would keep an eye on the bunny/cat relationship.  I believe it also depends if the cat is an outdoor kitty…mine are all indoor only!

I am about to adopt a rabbit pair to a household with cats.  The bunnies are going to be in an expen, and most of the cats are too old/un motivated to go after the bunnies (and can’t hop over the expen).  I also think it will be good for them to be in a pair because that way they can make each other feel safe!

I agree, they will find comfort in each other as a pair.     Just be sure to tell the adoptee to watch that their cats don’t try to paw them through the xpen.   A bunny can get a nasty scratch that is hard to heal if it hits their eye, mouth, face.   Sounds like the cats are pretty mellow, but until they know for sure how they will react just be sure to tell them to make sure their cats don’t try to bat them (with claws) through the pen.  Also, rabbits can give nasty bites through an x-pen,so they could also hurt the cats.

One way to help ensure a safe way for them to investigate each other is to get some finer metal netting that can be bought at Lowe’s or Home Depot  (like a finer easy to bend type of chicken wire, and just cover the sides of the x-pen (about a foot and 1/2 from the bottom up )  It can be secured with zip ties.
 
This way they can sniff, smell and hang outt near each other without fear that they will hurt each other during the introductory time.