[Aunt Sally]

Those small eggs just have egg white in them ...

These are sometimes called "wind eggs"

A  hen will create an agg around anything in the reproductive tract, normally a yolk.  But anything else like a small piece of tissue come loose can then be wrappe ut to form a tiny egg.

Don't fancy eating it if thats what it is, yuk!

Open it ans see if there's a yolk  

[ness]

I read on another site they are called fart eggs  :oops:  
Yes even at the ripe old age of 37 I find that funny!
Plus it doesn't inspire you to eat it!

[Aunt Sally]

I read on another site they are called fart eggs  :oops:  

      Perhaps a less polite way of saying "wind egg"