Hello.
It could be the temperature of the hen house. But what I found out because I’m new to keeping chickens. My 7 hens (no rooster at the time) did this all of a sudden and I being new to keeping chickens as I said before. There was a black snake living inside of the hen house. The black snake was eating my eggs on a daily basis.
He was eating really good until I figured it out. I figured it out, because at the time they were young hens laying 7 eggs a day. then I went to collect the eggs. Started to notice I was getting maybe 4/5 eggs a day. That’s when I found the snake inside of the nesting box.
The chickens would lay on the snake which was under the straw bedding. Chickens would lay the eggs. I guess keeping the snake warm in the process, not harming the chickens. Lay the eggs. Then the snake would eat the eggs.
CRAZY RIGHT!!