Cat Hissing At New Kitten. A hiss occurs “when a cat exhales a burst of air through the mouth, causing a noise that sounds similar to a snake hiss,” explains dr. A cat may hiss at the new kitten because she is expressing territorial aggression, feeling unsettled, and unwilling to share her space.
It’s more likely that your cat is upset because of the new cat entering the home and they are in a mood. A cat may hiss at the new kitten because she is expressing territorial aggression, feeling unsettled, and unwilling to share her space. Marci koski, a certified feline behavior and training professional with feline behavior solutions in vancouver, washington.
Your cat will often act like they are upset at you too when you bring a new cat into the home.
This is not the same as the resident cat teaching a kitten rules/proper behavior. Why is your cat hissing at the new kitten? This is really breaking my heart. For example, if one cat is avoiding certain areas or one cat is blocking the other from a particular space or resource then this is a sign of bullying.