We had pest proofed our coop by putting fencing on the walls and the ceilings and coving any holes that we could find. However, back in December I lost my 5 silkies because something got into the coop. It was like the scene from Alien when the creature comes out of the person's stomach. It was horrible. We think that it was either a weasel or mink because they could have been small enough to find their way in. Any advice on how to prevent very small animals like a weasel or mink would be very helpful. We are going to be getting some new chicks soon for my sister's 4-H project and we would like to get the coop to be safe again before her chicks are too big and have to move in there.