I am guessing the tadpoles might be just more "digested" sculpin. I have lived here my whole life (38 years) and it seems a little early, and cold to be tadpoles. I haven't seen or heard any frogs yet. I hope you are right though, it could be a good year for giggin'!!

I caught one last year near Hagelstien on hwy97 that was so full of sculpin, it's stomach was like a potato. Check out a lure called a Salmo "bullhead". That's one of my favorites this time of year.