I have some bantam hens, which are in a field. They are in a large enclosure whilst a fence is being put up around the whole field, as everybody is confined to their homes, I decided to let them out of the enclosure and keep watch of them, so they don't wander too far. There's an area that is just mud, which they went to, and I noticed a small shell on the surface of the ground, and after looking closer, I found many more. In the last few days, I have found very many in just a small area. Most are bound in ironstone, these are some of my favourites.
I also found some nice patterns in some ironstone.