Re: [cobirds] Migration Weather: Thursday Sept 2 through Friday Sept 3

For what it is worth…. I checked Birdcast this morning pre-dawn, and was getting excited for banding possibilities at Clear Spring Ranch (El Paso Co). It was a dud. Maybe my slowest September day ever at CSR.

Few Chipping Sparrows (none netted), fewer warblers. Netted 8 birds all morning - banded 3, saw 2 more warblers. I DID band a young Red-eyed Vireo, and a Hatch-year Dusky Flycatcher, but it was SLOW.  The big events for the day were - (1) 500+ Common Grackles flushed from a field in one giant flock by a Prairie Falcon, and (2) 22 Western Kingbirds lining the fence on the way out - my second biggest arrival of those ever.

Hoping for more this weekend - 

Steve Brown

Colo Spgs

On Sep 2, 2021, at 6:23 AM, Bryan Guarente <bryan.guarente@gmail.com> wrote:

COBirders,

This morning, the cloud cover is relatively low, and I am sitting out on the patio right at sun-up to see if there are any birds calling while they are passing by.  No luck so far, but the winds aren't great for migration yet.  The day is young though.  Right now, the pattern looks like this:

https://earth.nullschool.net/#2021/09/02/1200Z/wind/isobaric/850hPa/orthographic=-108.61,45.45,2061/loc=-105.120,40.191 (green circle is Longmont, CO)

Best of luck out there.  May the birds concentrate in your area one day.

Bryan

Bryan Guarente

Meteorologist/Instructional Designer

UCAR/The COMET Program

Boulder, CO