I got a new chicken coop today, it's 8x8, I'm modifying into a duck house it's attached to their run. I started covering the 2 windows with hardware cloth so nothing can break threw the window screens when I have the windows open. Should I put a lock or something on the door in the front that lifts to get the eggs from the nesting boxes???? Will a raccoon or something be able to lift that door & get into the pen???? Or am I just being a paranoid duck "mommy"!!!!!