You'll have a lot to cover biking up to Guanella Pass itself and the campground near it on the Georgetown side.
So if you must find a spot near Idaho SPrings, I'd cruise around the town itself. Hummer feeders?
COnsider a cruise around Georgetown, but main goal is the PASS, where you'll find habitat and birds
not easy at lower altitudes. 3 toed woodpecker, rare WW Crossbill and it may take a while to search for
and find WT Ptarmigan at the pass.
Good luck.
Let me know what you checked and saw please.
Joe Roller, Denver