come on dude you mean to tell me at first glance you didn't think it was a chinook? yeah right don't kid yourself! i bet over half the regulars including yourself at first glance thought it was a spring!
Coho killer - Actually I could tell that was a coho doe right away but that's because I've been working with them and fishing for them for quite a while. Even if I couldn't tell, my point is that the "newbies" on this site respect the "regulars" and I think that it's a good idea for the "regulars" to think twice before they post. This is a great medium for new anglers to learn but they have to learn correctly. If you're going to post something that someone may take as gospel truth, just think twice about it before you type it...
Terry D. and any other new guys out there, if you want to learn identification, I suggest going to one of the local hatcheries on a spawn or sort day. You'll be able to pick up some of the differences in chum, coho, chinook, sockeye just by watching the staff going through the fish. And keep asking the questions here before you go out on the river and do something you may regret later...