Sexing Indian Runners? Help!

[KatAtomik]

I hace a fawn runner duck who has always whispered- I could tell from the get going that he is a boy- he currently lacks the tail feather- but he does NOT have a yellow bill. He is the only one of this variant I have- I ordered a barnyard mix& ended up with these:a black& white Swedish, 2 appleyard females, and my fawn runner. The Swedish I also suspect may be a male bc the tone of its call is much quieter& scratchier. In the sun there is also a large amount of greens and blues- head& wings. No flip at the tail feathers yet, but does anyone know if the sheen colors indicate anything on Swedish ducks? My Cayuga male had the same sheen colors when he was juvenile as well- but got his tail feather really early on so I had an easy time sexing him. I’ll be bummed if my Swedish turns out to be a boy, as I will not be able to keep it- the ratio of girls to boys wouldn’t facilitate a pair of boys.

 

[Utahduckdad]

I have a conundrum. I am usually very good at sexing ducks. But this one has been difficult. 11 weeks old. Sounds just like their brother, who is very clearly a drake. They also have the same coloring as the brother. However, everything else is saying female. They are more dense for their body size. A little more rounded rump and narrow shoulders. Then these green spots start showing up. I know that usually a female thing. It was right around the time of the nuptial molt. Any ideas?

 

[Miss Lydia]

Only one of my Runners got green on her bill, a Fawn and White she was def a female. Beautiful face on your runner.