Connor and I hiked up to Beaver Lake today. Most of the lake still had a layer of ice on it, but there was open water along the edges. While we were there, I heard a dipper singing. I did not see it, but it sounded like it was coming from near the outlet stream. I imagine it must have recently returned to Beaver Lake, as I do not know how it could have survived when the lake was (presumably) frozen during the last cold spell.