My pop door is hinged at the bottom, and the door forms a ramp when opened. Well, the chickens are pooping all over their ramp, and it's freezing to the wood so that even a shovel won't scrape it off (it's been in the single digits for weeks). Now the door won't close and seal properly. Anybody have a better plan for a poop-free pop door in freezing climates? Maybe I'll have to leave the door/ramp down and fashion a new one that opens from the top????