Biting duck help

[PudgyMuffins]

So, I have two ducks who are a mix of Cayuga and Magpie. I still don't know what gender they are but they are about six weeks. They both bite, but only one is worse. They will grab my fingers and pull and tug. It has been getting quite bad and I have actually been getting cuts just from them biting me. I don't know if they are scared, they do shake when I hold them. I don't know what will help. They are going to be show ducks, so they cant be doing this. Does anyone have any help? Thanks.

 

[Amiga]

Well that is curious.

No quick answers come to me, but can you tell us what they eat, how big their shelter is, what their routine is?