I think were going to need some help. I went to the auction and all I bought was 5 doz. eggs listed as cold eggs for eating. When I got home I saw some of the eggs were small some large some brown some white. We went to cook them and saw they were all fertile and some had blood spots in them so we put 2 doz in the bator. Started Lock down on 15 eggs of every size and color. How hard is going to be to tell what kind of chickens? I think this is going to be a blast trying to find out.