Here's an exerpt from a research essay for you blkmgc-
"The flight muscles of most birds are red in color ("dark meat") because of the presence of many fibers containing red oxygen-carrying compounds, myoglobin and cytochrome. They are also richly supplied with blood and are designed for sustained flight. Lighter-colored muscles ("white meat"), with many fewer such fibers, are found in pheasants, grouse, quail, and other gallinaceous birds. These are also well supplied with blood, are apparently capable of carrying a heavy work load for a short time, but fatigue more rapidly. If a quail is flushed a few times in a row, it will become so exhausted it will be incapable of further flight."
Copyright ® 1988 by Paul R. Ehrlich, David S. Dobkin, and Darryl Wheye.
Go here for the whole shebang (interesting read...)
http://www.stanford.edu/group/stanfordbirds/text/essays/Adaptations.htmJust as an FYI, the pheasant I cut up earlier today definately had "white" breast muscles. Not as "white" as a chicken, maybe, but definately "whiter" than a duck.
As a falconer (I train and hunt with birds of prey) I have an above-average interest and knowledge of birds. I can honestly say that the AH forum was the last place I thought I'd be discussing avian musculature though! Very cool!
Back to the cannon / frozen chicken thing, it was kinda funny. I saw something similar but with raw chickens on MythBusters firing chickens at airplanes to simulate bird collisions and associated damage.
I had a blackpowder cannon that I built a few years ago (sold it recently). It had a 1" bore, and fired lead balls (.98 diameter). We tried firing frozen hotdogs and bratwurst's out of it. It worked fine, but was not all that exciting. When fired, the frozen brat looks JUST LIKE the lead balls. That's because you can't see either one. Big bang, lotsa smoke, and a puff of dust downrange. The brats didn't fly all that straight though. Non-frozen, they turn into a more "liquid" state, lol.
MtnMan