How can i catch a feral cat?

well 1st of all parasites? seriously? i have NEVER had problems from having ex feral cats...a coule ways if you cant get a trap, is over time of leaving food out they will slowly adjust to you to where you can at least grab them, but wear some thick a$$ gloves for that, r get one of those fishing nets, the bigger ones...i think thats great that youre doing that :)