I'm limited to the number of pheasants that I have, as I only have a trio of ringneck pheasants, but also have many species of quail including Mearns, Mountain, Bobwhite, and coturnix, along with some chukars as well; so my answer may not be as valid as someone who is solely feeding multiple species of pheasant.
 
This past winter, I picked up a few Texas A&M qual with the original intentions of being a small winter meat supplement, but now has proved to be my sole source of money for funding all the feed for all the birds plus my 3 Californian rabbits. I'm not hatching a crazy amount of them either I might add. Every week, I hatch out about 15-20, and typically have all sold within 24 hrs of posting them for sale online. I prefer to sell them at 1 week old, which insures a healthy bird who knows how to eat etc. for $2/bird, but will ocassionally sell them at 1 day old upon request for $1/bird but I require them to be picked up within 12 hours of removing them from the incubator in that case.
 
As of the past month, all of my birds have been switched to same feed (Purina Gamebird Layena), so that makes things a lot easier. The feed costs about $20 per 50lb. bag, and that bag typically lasts almost 2 weeks. In an average week, I'll make $15-$40 on coturnix chick sales, so feed is easily covered. While I am by no means becoming a millionaire, it is really nice to be able to do what you love doing for free, plus putting a little petty change in your pocket. Now when it comes to the Mearns quail and Mountain quail sale, that's where the money's at. I could sell 1 pair of Mearns quail and nearly pay for feed for the whole year. I'm currently in the process of trying to switch to the more "hard-to-find" birds and stray away from the more common ones; this will be my first Mearns season.