There are 3 or 4 cats that live in my close and they are constantly in my garden! I found one sitting on my bird table this morning and I'm constantly picking up poo from the lawn. We also have guinea pigs in the garden and I've found one of the cats sitting on their run a couple of times.
I'm so sick of them. How can I keep them out of the garden but not use anything that will affect the birds or the guinea pigs?