We also have another neighbor a few houses down that started out with one cat and now there's a feral colony and 5 are pregnant AGAIN. They come into our yard, stalk out seramas even when I'm outside with them, and have killed a number of ducklings. The cats pee all over our porch and the stench is awful. We have called Animal Control, police, etc. Police told us to shoot the cats. But we ended up getting a have a heart trap and trap them, they are WILD, and one of them tore my husband up to shreds and my dog too. We bring them to the shelter. We have asked and asked for her to please spay her cats, we even got her vouchers for free spay and neuter for people over 60 and she threw it in my face.
We trapped about 30 of her cats since last year and have had to rush several ducks to the vet to be put down because those cats don't kill the poor things, they just rip their throats open or their stomach and then leave them to suffer.
We also have several kids in the neighborhood that have been killing ducks with pellet guns, bows and arrows, cutting off wings, bills, feet, etc. In fact, the head of the humane society is a friend of ours and wants to put me in front of TV cameras and have a press conference about one duck that I found that was tortured, her bill was cut off and her webs between her toes. He wanted the people to do this at MY house but I don't feel comfortable doing it from my backyard because I'll become a target.