Stray Cats Door 2 Train. I’ve used this method to introduce new shelters to the cats. Train to use a litter box.
If you can’t use a screen door, you can try using two. Most feral cats will not use a shelter that only has one door. Generally speaking, the process of training a cat is more challenging for people accustomed to training dogs or other animals because kittens are much more independent and less interested in the opinions of humans than other house pets.
My sister describes this as 'petting aggression', where the cat is overstimulated by the attention and lashes out, and then was previously abused due to this so had.
A little money can go a long way to help a cat. Most feral cats will not use a shelter that only has one door. Since cats are very persnickety about the things they use, it is a good idea to find a type of litter with a particular texture they prefer. My sister describes this as 'petting aggression', where the cat is overstimulated by the attention and lashes out, and then was previously abused due to this so had.