We have been raising malard ducks and i just saw a racoon pestering them. how do i catch a racoon with a trap?

Get a live trap and buy a small can of cat food to place in the back of it. We have a large duck farm and have caught and released 8 raccoons so far. We have not lost any ducks though because our pens are secure with netting over the top and fencing buried under the ground around the pens.