Hi, everybody. Thanks to Bryan Guarente for the great "continuing education" about birds and weather. For example, this recent article in CFO's journal, Colorado Birds:
I listened and recorded a bit in the late 4am - early 5am this morning, Tuesday, Sept. 2nd, and the late-night flight over Lafayette, eastern Boulder County, was strong. There were several 10-15 second pulses when birds were going over at a rate of about 2 flight calls per second, then silence for 3-4 minutes, then more heavy calling.
Hard to say what they all were. Chipping Sparrows, Vesper Sparrows, Wilson's Warblers, and others. Heard a few high, fine buzzes that suggested Ammodramus to me, but that's just speculation. No Yellow Warblers or Lincoln's Sparrows that I could discern, which seemed a bit odd.
Best of all: Not really rare, but it was wonderful to hear a big ole flock of Baird's Sandpipers, winging their way through the moonlit night sky.
Ted Floyd
Lafayette, Boulder County, Colorado