I have 14 chickens in a 14x24 chicken yard. I have 7 tetra tints, 6 amercanas and 1 bantam. So far I just have 1 rooster. They have a 4x8 chicken tractor to roost/nest in. The fencing is 6' tall chicken wire with bird netting on top to keep everyone safe. I even put boards around the bottom to keep predators from going under the fence. I have a small dish pan for them to drink out of and I filled a plastic tote with water so they can wade in. The plastic tote is the size that will fit under a bed so its only 4-5 inches tall. I went out this morning to gather eggs (I'm getting 3 per day) and feed everyone. The tote was turned over. I flipped it over to fill it up and there were 2 tetra tints under it. I live in KY and its hot and sunny today. Both of the girls were alive, they were panting and had droopy wings. I turn the water hose on shower and wet them. I watched them until they stopped panting and their wings returned to normal. (BTW the girls that were trapped were clucking at me..asking what took me so long to find them) I will put a rock in the tote to stop that from happening again. I thought that I had a very safe place for my flock. I was curious how other people chicken have injuried themslves in a "safe" area.