Interesting read from CNN Business about Costco starting its own operations from birth to serving of rotisserie chicken.
Costco 5 Dollar Chicken At a Cost
One thing I was curious about, the article does not mention Foster Farms in these large chicken companies.
Currently the birds "out here" come from Foster Farms. I will admit I've found them to be far superior to the competition, even though the cooked weight is larger than most supermarket birds.