I have a five month old black sex link who I'm concerned about. She is not voluntarily roosting. She goes into a corner and just sits. Also some background I started everything backwards and I am still building their coop. Weather turned cold this week and it has barely stopped raining for three days. Temperatures overnight have been in low 40s. Have put tarp over run and put heating bulb in run lamp. Any thoughts on why she's so lethargic? I have noticed some days it takes her a long time to lay. She will sometimes nest for 30 minutes or more before laying an egg.