Kitten's Reaction to a Mirror

Why cats or kittens are doing this?
The lurking outdoor cat presence primes the mirror-gazing kitty to become suspicious so his fearful reflection also triggers defensive body language. ... Some cats learn to associate shiny surfaces/locations with feeling upset and these can trigger acting out behavior.
His name is Keanu.
Music:
Jaokim Karud - Longing
Editor:
Knowledgeable (Me)
#Kitten #Reaction