I am new to the website.I have two silkie hens and one rooster. They have had a great time running around my fenced garden all summer. I have been getting eggs for about a month. All of a sudden no eggs. I thought maybe their a little broody, but after about a week I started noticingfeathers around the nesting boxes. How long does this affect egg production?I have two white heat lamps on them and a heated waterer. It has been really cold here in versailles ky.Any advice?