Greetings all, New member here, just completed a coop for our 5 girls. New to chickens, and coop building, for that matter. Found a tractor design I liked on the internet, relatively low maintenance and looked suitable. Here is the finished coop: Exterior: Interior: This is an example of me putting the cart slightly before the horse. Having completed this project, I am now convinced that some modifications will be needed for our chickens to sustain the winter in central Maryland. Being an open-air design in the bottom run and middle perch sections, while nice for maintenance reasons, it will not provide enough shelter from the bitter cold wind we get occasionally. Adding a shelf or floor near perch level, though it might help seal the upper portion, would be my least desired option for the aforementioned maintenance reasons (though I'll do whatever it takes). I am thinking about adding some removeable panels (framed plexiglas?) around the bottom screening as an alternative. Any ideas? Thanks!