I finally found the fiddleheads! This is one of the things that I want to try so bad. I don't really know why. Although it looks like a weird ugly vegetable, I still want to try them! It was worth to woke up at 6 am to go to Farmer Market at St. Lawrence this morning! The farmer who sold this to me said that next week should be the last week that you will find the fiddlehead. So, I'm lucky today!
Note " fiddlehead ferns contain a toxin that causes stomach pain. The toxin is destroyed by the heat generated during cooking, so as a result, the fiddleheads must be cooked thoroughly before eating."