soft, yolkless eggs?

[lakbird]

i went out to the girls' coop this afternoon and there was what appeared to be an egg in front of the hen door. when i bent down to take a closer look, I saw that it was actually a soft, membrane-like shell which had broken on impact with the ground, and inside there was no yolk. i've heard a couple different things- some say calcium deficiency, others say that it just happens like that sometime. anyone have any ideas?

 

[silkiechicken]

If they are pullets, it is them getting used to laying. If it is old birds, look for calcium deficiencies. Free choice oyster shell is always a good idea.

 

[joanc]

I had a double shell-less egg the other day. It was the first egg like that I've had. All of my other eggs have had extra-thick shells. I've been giving my hens layer food and oyster shell fee choice, so I figured (and got feedback on my post) that it is normal to have those oddballs once in a while.
Here is the pix of mine: