have you ever been to Crum's on 41 south of you? its not non GMO (which is different from organic by the way) but they do have the wonderful bowles rangebird pellet. we have our feed mixed there, and the prices aren't bad either. I haven't looked into it but I hear they also offer distiller's grains.
I understand the whole "organic" thing, my wife and I started out on the same path. we have to many birds to be organic now - I don't think you can be truly organic with chickens. I have read up a lot on GMO's, Organics, and just farming in general. ive been reared around it my whole life in one form or another. I am also a "hippie" to an extent, I love herbal and homeopathic remedies, again I have done a lot of reading. as a rule of thumb; if a GMO is geared toward feed production, it contains no more "harmeful ingredients" than regular corn. the main drawback is lower nutrition levels with the same level of the "bad stuff". we have to feed more with GMO's to accomplish the same weight gain, and nutrition.
if you take your time, even using GMO's you can custom mix a pretty good feed. I am pretty happy with my mix that I use now. our chickens, turkeys and quail all eat the same feed, and are doing pretty well on it. at feeding time, there is a selection of whole and split grains, chicken pellets and alfalfa pellets. my wife and I looked and looked for a better feed recipe, before we found the one we use now.
Im probably the farthest thing from a GMO supporter, I do believe it has something to do with the bee population; and I don't think we should try and fool mother nature. - but ive been wrong before. im only saying this because its hard to sort through all the facts and fiction.
another thing everyone does wrong when mixing feeds, is to exactly copy someone else's recipe. most people on this thread probably keep their chickens in coops with grass, and seldomly move them to other coops. when they do; its usually for separation of a breed or illness. my feed mix is specially developed for chickens who don't have a lot of access to grass, they do get rotated to grass, but I keep all breeds individually. - because of this I had to add a second story to my pens.
Oh I'm sorry loveourbirds! I just found your post. I didn't think about crums! I'm not very good at finding the right "mix" for my flock. I've been mixing boss in with a little flaxseed when I have it. My friend has hers mixed here at Masters with these ingredients, but she orders about 80 bags at a time. I don't need to order that much and I don't have the place to store it. I use local mash and mix it. Also, my brown leghorn came from Murray McMurrays. I would say they were the dark brown, but I'm not sure. My 1 adult that I have left from my first flock, 5 yrs ago, is still going strong and she still lays occasionally. I ordered 3 more this spring. They are about 7 weeks old.