I've never known of any with a fuzzy or furry sort out brown outer layer to be edible. The best type that I know of are Ostrich fern, which appears to be what Timothy shared a photo of. They can have a thin brown papery layer, but not fuzzy like your photo seems to have. The Ostrich fern fiddleheads are delicious though so it's worth continuing to hunt and identify!
Can't tell from the images you posted, if you remove the fuzz, gently, and the stalk of the fern is u-shaped (deep groove on the inside), then you may have edible ferns that many refer to as fiddleheads. If the stalk is fully round , toss them out. (For what it's worth, that is what I have learned, please use your own discretion!) edited to say: after a second look at the pics, I do not think those are "edible fiddleheads."
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