I was aware of that but wanted to be sure I could still call them Easter Eggers if I put rumpless rooster in with them. Thank you for all your help. this has been very helpful.Easter Eggers are not really a"Breed" . They are mixed chickens that have a high likelihood of carrying at least 1 gene for blue eggs. They can and do vary greatly in color and type and will lay eggs mostly in the green range with pink, blue or brown a possibility. The typical easter egger has some characteristics in common with ameraucanas such as pea combs, muffs and beards.