I need to add some ventilation to my chicken coop before the cold settles in. I had hoped Son and/or Spouse would finally hear what I've been saying and get it done for me. Nope! I don't think it's going to happen -- unless someone takes pity on me after I start. I currently have insulation in side walls and ceiling. No wall coverings yet. I want to stick a few styrofoam vents into the overhang. Any suggestions as to what would work for the lower ventilation other than leaving the pop door open? Then I go for the wall coverings to keep the birds from nibbling away at my Vis-Screen and insulation.