I have written a post similar to this one about the same girl, but now she's seven months old and much, MUCH bigger. Onxy, my black pullet, is bigger than even my oldest girls, which are around eight months old. Before, people said that she was an Australorp since she had white bottoms on her feet. And with much struggle, I was able to measure her at 23 inches tall (and that's not even with her neck stretched all the way up). This is the contrast between Onyx, my oldest hen Orchid (the white Leghorn), and my third oldest Rose (the Rhode Island Red). Onyx towers over the other girls and Orchid head just barely clears the height of Onyx's shoulder. So is Onyx a Jersey Giant? Or do Australorps get this big?