Light not working

[Mikee1948]

I have a light in the coop that comes with a timer to give them 12 hours of light, but egg production is actually slowing. I have six hens (2 are Australorps), and I'm getting 3- 4, sometimes 5, eggs per day. I mentioned the Australorps because I've noticed black feathers scattered around the coop and run.

 

[Choco Maran]

They could be going though a molt for the winter as well as you should have 14 hours of light. Add some portein to their diet this may help. I have started feeding a 22% layer this winter and I'm getting on average 16 eggs a day from 45 hen (40 are just six months old)