Ostrich's first 3 or so were pale pinky-brown like the one on the right in the photo, with a faint greenish tinge, a bit darker than the rest of the egg, at the small end. Pompadour's (right egg) has that marking too. I know they were Ostrich's eggs because I spend time with the chooks in the morning, I know who's laying, and I kept a close eye on Ostrich in particular because I was waiting for her to start.