Quote: Ditto X100....a mix of materials is critical IMO.
Otherwise you can end up with a slimy(and unhealthy, even toxic) mess if one of the thinner materials is used in excess.
Have had that happen with leaves and grasses.
Here's a great description of contents and how to manage organic 'bedding' in a run or coop...and there's a great video of what it looks like.
https://www.backyardchickens.com/t/1037998/muddy-run-help-please#post_16017992