Common mistakes during cat introductions.
Cat introductions or inter-cat aggression are among the top reasons cat parents seek help from a cat behavior specialist. Domestic cats are intensely territorial beings. The subject of introducing two cats brings up a variety of well-meaning advice:
Just put them in a room together, and the cats will work it out.
Let the cats eat close together, and they will become friends.
Move their food bowls closer each day.
Plug in pheromones and give the cats calming drops.
These tips are, in most cases, a recipe for disaster. It is a tense situation for owners to observe. Once the cats have started to fight with each other or show signs of discomfort like hissing, growling, or swatting, we must go back to square one.
Bringing a new cat home can trigger the territorial panic switch in your resident cat. Imagine you come home and there is a stranger sitting in your favorite recliner?
Every cat introduction case is different; there is no generic recipe for success that works for all cases. But a systematic, evidence-backed approach will give you and your cats the best chance of a smooth integration.
Common mistakes I encounter:
1.Humans are rushing the intro process.
We, humans, are one impatient species. This process is not about us; it is about the cats in your care. Go slow and even slower if you see any adverse reactions like hissing, swatting, or reactive body language. Let the cats decide the pace. Be in control but relax. Don’t hesitate to go back if you feel uncomfortable.
2.Humans are misinterpreting cat body language.
Learn your cat's body language; it will help you assess your cat's comfort level. Cat body language is subtle. There is a wonderful book with illustrations from Lili Chin called “Kitty Language”. I highly recommend reading it.
3. Human expectations are too high.
There is a wide range of relationships between cats, from bonded buddies to enemies. Not all cats will become friends. We usually walk into a situation where both cats are on the spectrum of avoidance, hissing, swatting, and fighting
Sometimes the goal is a peaceful co-existence and timesharing in the same house. To increase the chances of getting to a peaceful timesharing situation, I always discuss resources at the beginning of each introduction. Every cat needs unrestricted access to food and water, a litter box, and vertical and horizontal hiding spaces. If there is already tension over access to the litter box or food, how can we expect the two cats to be friends?
Enemies – swatting, chasing, fighting.
Friends – Grooming, play, resting, tails up.
Roommates – is always the goal, but can be a delicate situation. Self-segregation, displacement, and blocking resources.
4. Cats and math - classical and operant conditioning.
Most cats like treats. Feeding both cats treats on each side of the door will prove that. In simple terms:
If Cat 1 likes treats and Cat 2 likes treats, that does not equal Cat 1 likes Cat 2!
Pairing a marker with a reinforcer is an example of classical conditioning. Not depending on any behavior or change in habit.
Rewarding the cat with a treat for not engaging with the other cat is an example of operant conditioning. The cats learn that if I engage with my owner, good things happen.
5. Cats like to be paid in high-value rewards.
Cats like to be paid. You don’t work for free, and neither do they. Make sure you keep up the high pay for good work!
Their normal food won’t cut it here. Find the high-value treat for each cat. Some like treats, others prefer a skin scratch. And don’t forget about the matching law. The more difficult the task, the higher the pay.
6. Stop feeding cats close to each other
The old myths of feeding cats closer and closer are all over the internet. Let me tell you it’s bad practice. Cats are solitary hunters and enjoy their meals alone. Don’t force them to eat next to each other or move their food bowls closer and closer. It will only create more tension. Even in households with cats that know each other well. Feed them in separate spots. And let them choose where they want to be fed.
7. Emotions Travel
Introductions are stressful. If you had a bad day, give yourself some grace. If you are stressed it your cats will be stressed. And if your cats are stressed, they will not learn. Skip the training today. Give it another try tomorrow!
8. Artificial pheromones and peace drops
Many cat owners tell me they have Feliway plugged in and still don’t see any improvement. This doesn’t come as a surprise to me. Cat introductions are part art and part science. Artificial pheromones can at most be a tool in the toolbox. They won’t replace training and operant conditioning.
9. Operant Conditioning
Operant conditioning is a powerful technique for changing behavior or breaking a habit. It is a process and doesn’t happen overnight. Emotions play a big role as well. If the cats were friends before and this is a case of redirected aggression, it may be a shorter process than introducing two cats who have never met. But we never know, we are working with cats!
10. Olfaction is underrated
Humans underrate the importance of olfaction in the sequence of feline introductions.
Cats communicate via scent and pheromones. When you introduce two cats, make sure they don’t have any visual or physical contact at the beginning. Each cat gets to explore the other’s territory without ever laying eyes on the other. This is also an opportunity for key signposts—such as cat trees and litter boxes—to pick up a shared scent. A crucial component in the “getting to know you” process.
Observe your cat’s reaction to the scent of the other cat. We want the cats to be relaxed. We don’t want to see obsessed sniffing or hissing.
Please do not rub a cloth over the face and body of one cat and rub the same cloth over the other cat’s head and body.
Imagine somebody covers you with the scent of a person you don’t know or like.
If you need more help with cat introductions, The Feline Consultant can help introduce two cats that have never met or experienced non-recognition aggression.