If a hatched eggs is fertile or not, I mean is there a mark or something on the shell to indicate the fertility?
I've never heard of anything on the shell--only the "bullseye" that can be seen after the egg has been cracked. I recieved some shipped eggs and a couple had cracks so I went ahead and opened them to see if the yolks were scambled. I had read on here what the bullseye looked like~~~ This was the first time I had actually seen one in person It's a shame you have to open the egg to see it! Becky
This link will take you to the posts that helped me figure it out--I think the info was from Speckledhen. https://www.backyardchickens.com/forum/viewtopic.php?id=16008