Hen laid rotten egg???

[zanelee]

I collect our eggs from our nestbox every day, so I know it had to have been lain this way. Picked up egg and noticed it "rattled", and you could hear the water sloshing. Shook it again to make sure I had heard what I heard.
Kids and I broke it open and promptly buried it. UGH! Green, rotten....
Why, and how did this happen? Should I be worried about my hens?
This is the first time this has happened, and not sure which one did it?
Thanks for any help or advice!
Jennifer in Tx

 

[cluckin tractor]

if the nesting material is deep then the eggs could of been hidden for a extremely long time and re-organised and un-covered. i doubt it being in the hen or you would of noticed it being proplaspe or something like that. that is my best guess or maybe the chicken has a hiding spot and some how brought it up because it was stuck by a broken egg on her feathers and draged up the bad egg.