My chickens waiting to be let out of their deep litter run in the morning.  On the left of the photo is the edge of their coop which has a hatchway that directly connects to the Deep litter run.

Barnevelder hen in the shade of a cherry tree.  It is important that your chickens have access to a shady place, especially in hot weather.

What you don't want is to have your chickens walking around on boggy ground.