Male pekin dead in cage

[Daisysduckfarm]

Hello! Unfortunately I found one of my male pekin ducks dead inside the coop..

For reference it is a 10 feet by 20 feet runner cage with access to a wooden coop. Inside the coop there is middle divider for nighttime male/female separation. So they still roam together during the day.

There are 6 females to 3 males…and yesterday I noticed the male pekin (Meeko) was staying inside the coop as opposed to interacting (normal eating and walking observed prior to this)

I do know one of the other males (Duke) is a bit more aggressive than the other two so my question is

- am I right on suspecting death by duck?

- if this male pekin was the cause of death should I expect him to kill again?

I suspect bird on bird death (picture of dead bird not included) I found meeko on his stomach with his back feathers ruffled and blood from beak/eyes. Barely any feathers around.

I have NEVER seen Meeko (dead) fight with the other boys before and the suspected killer is from the same hatch housed from birth together.

Any advice is helpful, I feel this is more of an emotional issue…I don’t want to get ride of Duke as he is my other OG duck but don’t want to find another male or female like that.

 

[Daisysduckfarm]

Prior to this event they were allowed out of the runner cages into a fenced open space and interacted with the other 14 members of my flock (separate runner)

Due to the bad weather in my area I kept them in their runners. And this happened day 2 of being locked in runners

but I am just so surprised

 

[Daisysduckfarm]

Can include pictures if that helps