I have an Ameraucana hen who has stopped laying. She is one of six hens. The others are laying normally. When she started laying she laid an egg every other day for about 2 weeks, then stopped laying for about 6 weeks. She started laying again, an egg every other day for about 2 weeks and stopped again. It has been over a month since she laid the last egg. She acts totally normal except for not laying ... active, eating, drinking,etc. Any suggestions or idea of what might be causing this?