When we got him, we thought he was a HE. But, now we're doubting. He/she is four weeks old. He/she, has virtually no comb. He has very, VERY small ridges on his head that you can barely see. His "waddles" are not hanging at all, and are also hard to see. He has less feathers than our other chicks. Is "he" actually a "she"? And what are your reasons?