I have a 1-2 week old chocolate orp. She was very weak and small when I got her/him and was actually worried about survival. We got passed any worry because now he/she is thriving and (even as the runt of the flock) she is very fiesty. the wings have been slower to develop than my other girls but they are finally growing. The guy that gave her to me used wing sexing to determine that he thought she was indeed a she....any other opinions?