Orpingtons usually lay later from what I have read. I saw the Prairie Bluebell in the nest this morning. I may have just been too anxious to know when I should know soon anyway. I haven’t gotten two of these light brown eggs on the same day. I put my fingers between the bones under the vent and the Orpington has only one finger width. For now I will need to be patient I guess! Thank you! I have an Ameraucana who is still skittish at 2 years old and won’t squat. Only runs from me. I think one of my Polish is going to be the same! My olive egger laid a beautiful egg on July 1 and none since. She squatted good today. It’s hot here in Texas too! I’m not getting many eggs these days!That could be your Australorps egg, a change in egg color and quality happens and those two egg don't look too different. Unless you're getting that egg and your Australorps too, in the same day.
How does your Orpington look? How are her comb and wattle size and redness? Not all pullets will squat for you, I've found that most of mine haven't.