Well, my leghorn is actually a cross herself. She is half leghorn, half Ameraucana. She looks just like a leghorn except her comb isn't as floppy and she has a few black flecks in her white feathers. The father could either be an EE, light Brahma, or cochin, though the cochin isn't as likely as the others. I don't know where she came from though, I got her in a trade with a friend and I don't know where he got her from lol.I have to ask, when I see that you have leghorn mixes..did you by chance get them from DMRippy? I got some from her, and had a great hatch. They have grown, and now lay like a leghorn. Not as big, but just as often!! Here is a picture of one with my Wheaten A. in a nest box.
Even if you didn't get them from DMRippy, then all I can say is, those leghorn mixes are the best!