Well I am totally bummed!! I think my eggs got too cold en-route, the only thing I can think of since they were packaged perfectly. The majority of them didn't develop at all but the ones I did check were fertile, so I don't think that was the issue. Maybe they were tossed around too much by the PO?? I did let them sit a day though. So far I do have one very adorable chick who is very healthy and had no problem hatching, a splash I believe and 4 more I'm hoping will hatch. Well, I guess that's what I get for ordering eggs this late in the year. I need to move to a warmer state!! Will try again in the Spring.