The thing about cinnamon is that it disrupts the ants path and if they cant find the path they go away. Putting cinnamon on the roosting post, on the attached ends, would probably work if the ants have a path along the roost. If you put the cinnamon around the perimeter of your coop, they wont come in any more, hopefully! It puts up kind of a barrier.So... if I put cinnamon around the roost I will see if there’s ants?