My roosters have decided they want to roost on my deck railing & top of my grill beside the rail. The 2 of them & my 3 guineas have made this their sleeping quarters. They leave droppings all over the deck & grill top. They like to free range rather than being in a coop. How can I get them to relocate to roost in another location? Do I need to build them a separate roost in another location?