I also found these articles pretty interesting.
http://www.plamondon.com/wp/how-many-chickens-per-acre/
http://www.plamondon.com/wp/save-money-on-chicken-feed/
I find it really interesting the difference in my birds (I have a lot of different breeds) even though they all came from hatchery stock.
My Leghorn I think could easily survive off free range as when I let them out she’s very industrious and always scratching away. She finds tons of food for...