There were originally 4 kittens, and the mother in the other neighbor's backyard, and when he called the nearby dog pound, they only picked up 1 kitten, and the mother, which now leaves 3 kittens, I can't do anything about it, and my mom says to leave it to him, which really makes me mad, because he won't call them again. Any spells that can help here please? I'll feel guilty if I don't do anything to help.
Cats are very capable of handling themselves. My best advice would be to feed the mother so her supply of food isn't mainly garbage and possibly poisoned rodents. When the kittens are 2mo old, you can try to catch them and take them in to a no kill shelter yourself. Kittens are adopted quickly. Use a towel to catch them, they do have claws although they're teeth will still be too weak to draw blood. I caught a stray kitten before. It was quite fun, kittens are fast! I kept it though. He was my little Shadow. But strays are a gamble, mine had leukemia and died at the age of 2. So don't expect too much. You can only do what it is within your ability.
You can protect them in a ritual if it makes you feel better. But with animals, action is the best form of help.