Yes, EE's are not recognized by anyone official. EE is just a common term used without any police running around correcting you if you state something wrong. And since it is not legally defined or enforced by anyone, we can all have our own opinions on what qualifies as an EE. To me, an EE is associated with the blue egg gene, but that is arbitrary. If you want to associate it with any other characteristic, you certainly can.
You are right. The hatcheries can send out birds that do not have the blue egg gene and call them EE's. After all, look at all the names they call their sex links. They don't all use the same crosses to produce sex links yet some different hatcheries call some of them by the same name. To me common term usage is that the EE should have a chance to have the blue egg gene. They may not always inherit the blue egg gene. But they should come from a flock that has the gene in it.
I don't recall saying that EE's were developed out of Ameraucanas. I mentioned they might come from chickens with muffs or tufts in their ancestry. And I don't know that all blue egg laying parent breeds have either of them. It's been a few years since I read up on the others. Since I don't know if any of them are available in the US, I haven't worried about it.
I made the assumption that the OP was interested more in egg shell color than pea combs. I could be wrong. An EE can mean whatever you want them to mean. If you simply mean an association with blue or green eggs, I stand by what I said. You don't know until you see an egg. And chicks hatched out of green or blue eggs may not have the blue egg gene if the parents are split for that gene. Some might call those EE's, but I called the ones like that that I hatched Supper.
You are right. The hatcheries can send out birds that do not have the blue egg gene and call them EE's. After all, look at all the names they call their sex links. They don't all use the same crosses to produce sex links yet some different hatcheries call some of them by the same name. To me common term usage is that the EE should have a chance to have the blue egg gene. They may not always inherit the blue egg gene. But they should come from a flock that has the gene in it.
I don't recall saying that EE's were developed out of Ameraucanas. I mentioned they might come from chickens with muffs or tufts in their ancestry. And I don't know that all blue egg laying parent breeds have either of them. It's been a few years since I read up on the others. Since I don't know if any of them are available in the US, I haven't worried about it.
I made the assumption that the OP was interested more in egg shell color than pea combs. I could be wrong. An EE can mean whatever you want them to mean. If you simply mean an association with blue or green eggs, I stand by what I said. You don't know until you see an egg. And chicks hatched out of green or blue eggs may not have the blue egg gene if the parents are split for that gene. Some might call those EE's, but I called the ones like that that I hatched Supper.