Ducks attacking each other

[cmcrdonna]

Yesterday I had three-year-old female and one mail Wells harlequin. This morning one of the females was dead chewed up her neck was all bloody and she was dead in front of the door. This afternoon the male and the other female have started picking on one of the other females. They’ve been together since they were ducklings they’re a year old but now the one’s neck is all chewed up. She’s been separated from the other 2.
About a month ago they hatched 12 ducklings then started ignoring them and then attacking. I have 5 left (I thought it was something else).
any help is greatly appreciated

 

[Miss Lydia]

My goodness that is so sad. So sorry for your loss. So only one drake and one female doing this?
Thank goodness you have removed the female they started on this afternoon. I believe I would remove them from the rest also.