Heading to bed after a couple hours on the roof. It was really hopping- the Grand rapids radar is weird tonight. There was no reflectivity as the sun went down, then this horizontal push of birds showed up, apparently behind a cold front at upper levels?? Anyway, I just listened to well over a hundred seeps, thrushes, and sparrow calls including some very interesting ones which I cannot WAIT to investigate on the sonograms tomorrow (have to wait for recording to finish before trying, otherwise I have to pause the recording). One of which was a *very* long downslurred note suggesting LCSP (possibly FISP?), the other sure as heck sounded like the long cascading downslurred note of HESP (like a LCSP with a slight BOWA jingle quality to it).
More in the AM. Get out there!