The 2 chicks are one male and one female. I think the op just mixed them up when taking pics of they are not used to noting differences.
Nurse, the hen has more of a crest on her head and is mostly all dark on her back. The next pic has to be her brother because the facial markings are different. Look closely at the pics of the faces, blow them up and you will see subtle differences. Also males will have more bars on their back.
Nurse, the hen has more of a crest on her head and is mostly all dark on her back. The next pic has to be her brother because the facial markings are different. Look closely at the pics of the faces, blow them up and you will see subtle differences. Also males will have more bars on their back.