Is it normal for my ducks to be yellow???

[holliedures_]

hi, so basically my ducks have started to turn yellow in some patches, i would just like to know if this was normal? like is it something that happens in winter?

 

[Pyxis]

What's their main diet? A diet high in corn can cause feathers to turn yellow. Sunlight can also cause it, and possibly it could also be staining from something.

 

[Gkundern]

I have the same problem. I cut back on the cracked corn but it didn't change. Corn is the first ingredient in their layer feed though