I have 11 Ameraucana eggs in the incubator right now along with 13 other eggs, mostly barred rock. The Ameraucana eggs are from my two hens (wheaten and blue wheaten) that I fairly recently picked up and this is my first attempt at hatching their eggs. They are covered by a blue wheaten Ameraucana rooster. Here is a pic of a a fresh egg I looked at to verify fertility: Unless I am mistaken there is a bullseye here. I have checked several eggs from them in the past and they have always looked fertile. The problem is that I am on day 11 and have not seen any evidence of development in the Ameraucana eggs. All of the Barred Rock eggs have an active embryo so I know the incubator is doing its job. My curiousity got the best of me so I removed two eggs from the incubator today and cracked them open. All that was in there was a large yellow yolk. No embryo, no veins, nothing that indicated development. In the coop with the Ameraucana's are some Easter Eggers. A little over a week ago I hatched some of their eggs and now have some nice Easter egger chicks. This tells me the rooster is doing his job. I am at a loss. The eggs look fertile. I have successfully hatched eggs from the Easter Eggers that are in this same coop. Every single egg in the incubator has an active embryo except for the Ameraucana eggs. I don't get it. Any ideas???