What is the most logical next event?

How to trap a feral cat
Establishing a regular feeding routine.
If your property has a lot of feral cats around and you want to get them spayed or neutered, you can start a regular and controlled feeding routine. Put food out at the same time and place daily.

Available choices:
1). Keep the space clean and dark, turn on the lights before you go to bed and clean the cage regularly. If you have a very large room that is full of feral cats, you may have to create more than one feeding schedule..
2). Food is usually the easiest way to get feral cats to come into your vicinity. Let the cat get used to your presence..
3). Use a food sensor to keep the food cold, wet, or cool. Keep a litter box in your yard..
4). Don't leave a cat not spayed for too long alone. It could become too aggressive if you leave one alone too long..
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