Although our main field season ends on ~August 1 each year, we always return to the ridgeline in mid-September for a final session, in part to witness the unexplained resurgence of Bicknell's Thrush (BITH) activity, in part to intercept fall migrants, in part because it's just plain fun. We set 23 nets on Tuesday evening, catching 8 birds by nightfall. Brisk west winds kept the dusk BITH "chorus" to a minimum, but a few birds teed off briefly, mostly calling, with a few songs thrown in. Winds dropped overnight, and nets were open by 6 am (as opposed to 0415 two months ago -- love the shorter days...). The dawn chorus was robust, with 10-12 BITH calling vigorously at times, even sporadically into mid-morning, and a few singing. Virtually everyone else was silent, though we heard a few Swainson's Thrushes overhead at first light, apparently still migrating or coming down from their night's flight.