Most vets will loan you a trap
We had a feral Tom that was attacking our two and costing us a fair bit in vets bills, the vet commented on the frequency of our visits and my 10 year old daughter told her I’d tried to catch Applebum (feral tom) the vet said ” that’s a lovely name” Megs replied “it’s because of his balls”🤣
Anyway I borrowed the trap and proceeded to catch every cat in the village except Applebum! Eventually I got fed up of feeding them all and stopped putting fresh food in the trap, after a couple of days Applebum appeared to appreciate stale catfood and got himself trapped!
Swift visit to vets for castration (FOC) after which the vet advised me to release him back on his own territory! No chance!
Dropped him off 8 miles away on a rough arse estate, parting words were let’s see how tough you are now mate!”