Hi - I hatched out some chicks and ducks at the same time and kept them together. I fed them a "flock" start good for both chicks and ducks. The problem is .. was... when they got bigger around 3 months or so the older chicks and ducks would eat their food and the babies would eat the layer food. So i stopped buying the start and just let them eat the layer with the other birds. They are about 20 weeks or so now and look great... but will it hurt them starting them on layer food sooner than normal? How will it effect them? Also, will they lay for me this winter or should I expect them to start lay in spring because of winter? I am giving more light.