Does anyone know what this could be? All of a sudden expelled from one of my hens!

[lynnrm1]

 

[lynnrm1]

She squatted and some fluid came out and then all of a sudden this appeared. I checked her vent and everything looks good. No red tissue, no blood and tissue looked healthy. She seems fine, ate and drank before bed etc

 

[aart]

Looks like some membrane from an egg malfunction.
Keep an eye on her.
How old is this bird, in months?
Is it fall/winter where you live?

 

[lynnrm1]

She is almost 6 months old and we are in southern New England. She is fed good quality layer feed and free choice oyster shells and crushed egg shells. Her other eggs have all been fine. I am keeping an eye on her and so far today she seems fine. Thanks for your response.