What was the total mix? Sometimes peafowl will leave sunflower seeds alone for the most part when they have nutrition that sunflower seeds have to offer.
Peafowl's regular diet involves grains, insects, vegetation, small reptiles, and small mammals. Watch them when a grasshopper flies next to their faces. I wish I could get it on video because it's funny. Peafowl need at least 20% protein feed. Make sure your birds have something like gravel...
I always keep my males and females together all the time. I keep them penned up all year. My hen even has chicks with her and the male doesn't bother them.