Glad that I was able to trick so many people.
I'll C&P what I commented on our Facebook page the other day:
"The point of this and future contests is to develop a fun way of this learning process. You get it right, you might win a prize. You get it wrong, you learn the mistakes and do better next time."
You cannot conclude that there is a huge percentage of anglers cannot tell the difference between a pink and sockeye salmon from this contest. While there are definitely many who cannot do so, because they are new anglers who still have lots to learn (we all do!), I think many simply only glanced at the photo and entered it quickly because it's just a small contest, the prize is not that big.
On a more positive note, 130 more people should be able to tell the difference between a pink and a sockeye salmon now that the contest is over.
Cutthroat22 is right, the third most common answer was coho salmon. There were the odd chinook and chum salmon. No one answered steelhead.
Since there were so many entries (I was blown away by 309 entries in one week), we will be doing this hopefully on a monthly basis in 2012. It's a good way for everyone to practice.