3.Once the cat(s) are neutered and/or spayed, you can provide them with support by setting up regular feeding spots, and ensuring they are receiving adequate nutrition by providing a steady supply of cat food (wet or dry), along with a source of fresh water.
Choose a spot to feed the cats which is sheltered, and away from prevailing winds. Always ensure the area you choose has multiple points of entry and exit. This will ensure all the cats in the community will be able to access the food.
It is a good idea to feed community cats on a schedule; the cats will learn the schedule, and you can check them all at feeding time, to ensure all are present, looking healthy, and that no new, intact, cats have joined the colony.