WHAT IS THIS traces of egg in her poo

I introduced a new hen (approx 1 year old) 11 days ago, for the first week I was unsure if she had stopped laying of she was eating her eggs.
For the last 2 days I have kept her in the coop so that I could keep a close eye on her.
Whilst doing the usual clean up tonight I noticed that some of the poo had what looked like traces of egg in it.
Could this mean she is eating her eggs, there have been no traces of egg or shell anywhere until tonight.
Or could there be another problem, someone has mentioned internal laying, I dont know what this is.
She appears healthy, active and eating well but I am concerned.

I kind of destroyed the 'evidence' as I inspected it!
Looked like normal poo, brown solid with usual w :wub:hite, but as I scooped it on to shovel it seemed to have the raw egg white mucus type stuff (thats the technical term ) with traces of the yellow yolk in it.
Does that help