I agree with the above two posters. Only a few birds, namely the Ameraucana, Araucana, and Easter Egger, lay green or blue eggs. Your are likely Easter Eggers, as you will rarely find purebred Ameraucanas or Araucanas. Also, your birds do not appear to fit any of the standard color patterns for Ameraucanas or Araucanas. All Easter Eggers will look different, as they are mixes. The only things that define an Easter Egger are that they don't fit the standard for the Ameraucana or Araucana and lay colored eggs. They vary widely in color pattern, and can basically look like anything.