I am getting 4 Chickens total. 2 Araucana and 2 Rhode Island. I am very excited, but I won't sleep at night unless I believe they are safe. I have a total wood coop with 2 small windows away from the nesting area. These windows are covered with welded wire (1 X 1/2). The roof is metal and the small openings in the eaves are covered with the same welded wire. The flooring is plywood. Will the raccoons scratch through the plywood? Also, what type of latches should I have for the doors? Thanks in advance for your needed help!