I have chickens that are 16 weeks and ducks about 14 weeks. Am getting ready to switch off chick starter. Was wondering if anyone has experience or info with feeding both together as they share run and eat each other's food...They love to share lol. I wanna know if layer feed is OK for putting both of them on and if the male's will be OK with this too or if an all flock will be best? My ducks are both males and females so girls will be laying too.