When our young pullets started laying in Dec, I was amused by one of the first eggs that was pecked. Wasn't on high alert until I witnessed our Turken rushed out of the coop with something bright yellow in her beak while chased by everyone else. She gobbled the whole thing down in seconds. I was horrified thinking that our entire flock are now into egg eating!
Here are the steps we took:
- added calcium powder and ground egg shell to their feeds to strengthen the shells (but I was advised by the BYC forum members not to do that, I later added Oyster Shell on the side instead)
- placed multiple ceramic eggs, both tan and blue, in each nesting boxes
- filled an egg shell with mustard - they ate the whole thing regardless, so that didn't work
-installed a baby monitor with night vision camera aiming at the nesting boxes, watch them, and pick up the eggs as soon as they finished laying. Thanks to Covid/Work at home, we have the luxury to tend to this chore all day, and it's fun.
I'd say all of the approaches helped except for the mustard-filled egg.
(BTW, I also attempted to make a DIY roll away nesting tray, but the paint tray I purchased was a tad too big to fit into the current nesting boxes, so I gave up on that.)