So as i was browsing through the wonderful world of Backyard Chickens and it occurred to me that i have a roo in my flock. And while it isn't "new" to me that he is a roo, what i hadn't thought of before was what i am feeding my flock. Ive been feeding all of them layer feed. But i noticed something in another post that said something to the effect that layer feed can be bad for birds that aren't lying, as there is too much calcium in the feed. SO i guess my question is what should i be feeding my whole flock so that the hens get a balanced diet with enough calcium (I do have oyster shell and grit in separate feeders readily available), as well as a balanced diet for the roo? Also i was curious as to scratch grains, does everyone just buy a store bought mix? or do you have a favorite blend that you mix on your own?