Night Time Roost Layer - Morning Time Box sitter HELP!

[SJREMPEL]

I have Buff Orpington who was a really good consistent layer. Lately she has been having some issues.
For over a week now, nearly daily I will find an under-developed egg under the roost where she has been sitting (obviously cracked) then in the mornings she will sit in the box as if she needs to lay. She seems to be laying in her sleep - and then still feeling the need to lay in the morning.
I have given them access to oyster shells, she regularly gets yogurt (weekly opportunities).

Has anyone experienced this before? Is it a phase?
HELP!

 

[Judy]

If you are sure this egg is always hers, and the others have normal eggshells, I would suspect something like a defective shell gland. Check out this article on consistent soft shelled eggs:

http://www.thepoultrysite.com/publi...dbook/16/thinshelled-eggs-and-shellless-eggs/