I have a hen that in her tail feathers are some of the bigger ones are like upside down. Meaning that the stem is faced up instead of downside like normal. I hope that makes sense. Anyway is this a genetic defect? I know echo her parents are. The dad has several offspring besides her here and haven't seen it in any others. The mother other than having her I know nothing about her background other than a buff colored hen. This was the only off spring of hers that I kept. There could have been more but since they didn't get the naked neck I sold them all off.