Help !! Eggs without shells

[vjg13]

We have had 2 hens for 3 months and today both did 'normal eggs ' in the nest box early morning and then early afternoon I found 2 eggs without shells in the run. Have been in all day and nothing unusual has happened to them (like a fox visit). Does anyone know what causes this?

Immaturity is one cause but you may also need to increase grit ration - do they free range?

Yes, I pen off different areas of the garden for them so they have access to soil and grass. Also gave them extra grit today after this happened.

There is a product called ShellStim which you can add to the water to give them extra calcium.

Or you can try giving them baked eggshells.

normal budgie grit or crushed cockle shells works too. It's likely to be immaturity, particularly if you have had two eggs in a day, the second ones sound like 'practice' ones.

we had alsorts of bizarre things before ours settled down. the grit is uber important though as they need extra calcium.

Thanks for all the replies, I went into a new chicken keeper panic frenzy!!