But....
In the winter is my SMALL hen shed, I'd like to remove SOME of the poop since that's where they spend a lot of their time pooping. So I was also interested to see various innovations to make that easier.
Even though I would remove SOME in the winter, I would still maintain a good, healthy built-up litter and would remove any poop catching devices for the warmer months.
Well according to that article mine is deep enough. Mine I bet is about 4 feet deep in spots with the hay I added when we had wicked cold temps

My girls tend to stay away from the poop piles under the roost. Even if they are in the coop most of the day.
My poop this winter is ridiculous. I swear it freezes as they expel it. They have it frozen to feathers. I was pulling it out but the poor birds had a few missing spots, so I quit.
I agree. Sophie has poop streaks on her bum. I really think its because of all the fluffy bum feathers they have. They seem fluffier than last year. Maybe they knew how bitter cold it was going to be. I will trim bottoms when it warms up.
My poop this winter is ridiculous. I swear it freezes as they expel it. They have it frozen to feathers. I was pulling it out but the poor birds had a few missing spots, so I quit.
I haven't had it on the bottoms, but it sure has been frozen very quickly after dropping. Then when it gets warm, it's too much in my small shed when it melts all at the same time. That's why I've been interested in seeing how folks are doing the poop catchers to decide if there is a better way to handle that in winter for me.
I don't do poop catchers. If there is a lot under the roost I use the pitch fork and turn it over. The hay tends to compact down so I find turning it once a week helps stir the poop around, break up the compressed hay areas, help with the minor odor I get from time to time (if there's an odor it means the roof vents are blocked by snow or to much poop under the roost- I have a lot of ventilation in a hoop coop. Snow was blowing in it today in spots even with hay bales on the outside on 3 out of 4 sides of the coop :/ )
I didn't want to use hay this year but with the arctic temps I had to. They needed that added insulation with the cold. No bug problems so it was ok. I do find turning the DL with the hay is helping the hay to break down faster. Putting that nice DL on the bottom on top of the hay seems to encourage the hay to break down. When it starts to warm up I plan on taking some of the DL put and put it in the garden then add some leaves to the DL in the coop to help the hay break down faster (I hope)'