Tuesday evening, we found another egg in the nestboxes. This one was from one of the Red Stars, we know since S. saw it laying.
Here's the egg--look how different the color is
A line-up for comparison purposes. The egg on the left was the first one, laid by a White Rock. The one in the middle was the first one we got from one of the Red Stars, and the one on the far right came from the grocery store.