I have a 4 chicken flock which is lower than the 6 I had a few weeks ago. One got eaten and one disappeared. We fixed the problem by spotlighting the coop at night. Anyways we have a golden laced Wyandotte, a white orphington, a black australorp (who we don't think she's laying anymore as she is about 4-5 years old), and a Rhode island red. All of them lay brown eggs but one of them is laying green eggs. It isn't a full green color it's like a greenish, brownish, whitish color. I'll attach a photo.