There was a lot of avian activity in a nearby birch forest. High in the canopy there were migrants -- foraging Yellow-rumped Warblers and an unidentified flycatcher. Down at ground level the resident little brown birds were busy.
but stopped every ten seconds or so to sing, a song with five clear notes, somewhat similar to that here. [And note, a tongue. Brown Creeper tongue, rarely caught on film. (Because no one uses film anymore.)]
Bonus shot: Creeper leaping from tree trunk, reminiscent of Robert De Niro as Archibald "Harry" Tuttle.
Superficially similar-looking bird, this Bewick's Wren was also in fine vocal form. He was both singing and making harsh scolding notes (the latter at me, I suppose).
And in the pond, an aquatic LBB, the Pied-billed Grebe featured in yesterday's monochrome montage.