A droppings tray is a great coop feature, if yo're lucky enough to have it! It's like a shallow drawer in your coop that can be pulled out and dumped or scraped to make for quick and easy cleaning. This prevents you fram having to scoop or shovel out dirty bedding.
The droppings tray usually located under roosting poles, because that's where most of the mess occurs (your flock remains on the roosts for long periods at night). In smaller coops, it may make up the entire floor! Again, just pull out your droppings tray, then turn out the contents into your compost bin or pile, add fresh bedding, and put it back in place. Easy peasy! And remember: the cleaner the coop, the healthier your flock will be.