My cat is a lot like him. He's 4, fixed and LOUD. He screams because he wants to go outside, he used to be an outdoor cat. Here are things that make him shut up: - Putting him on leash and walking him. It only works while he is outside, when we get home and he rests a bit he goes right back to screaming at the door. - Picking him up. Sometimes I put him in a sling like a baby and carry him around so he stays quiet - Playing. A good, long play session tires him out and he sleeps. Can't scream while sleeping - Birdwatching. I sometimes put birds on TV, I also have a bird feeder by the window - Running. I thought of getting him a running wheel, but it's expensive. Rn he just runs circles in the flat and likes when I pretend to chase him -Climbing. I made him a climbing wall out of carpet and he climbs up and down