Bird Conservancy of the Rockies - Barr Banding Report 8/31/25

[meredith]

Wilson's Warblers arrived today.  20 of them, more than doubling the total of WIWAs we caught in the previous 8 days.  90% were hatch year birds, which is about what we should be seeing at this time in the migration.  It is hard to express the relief we felt in having a "normal" amount of our most caught species arrive.

The only obvious (to us) environmental change I would note is this morning was the first day in a week that the sky has been clear (no clouds, no fog) at dawn.

To go with the 20 Wilson's Warblers, we had:

Willow Flycatcher 1

MacGillivray's Warbler 1 (FOS)

Chipping Sparrow 1 (FOS)

for a total of 23 birds for the morning.

We are closed tomorrow; back in business on Tuesday.  Come visit!  Our visitor hours: Weekends we will run 3 sessions, at 8, 9, and 10 a.m.  Weekdays (Tues through Fri) there will be a 7:30 to 8:30 session.   These are small group sessions (15 or fewer visitors), and a great way to learn more about the species that move through the front range in the fall.  There is a $7 fee and registration is required - click here to register.

Meredith McBurney

Bander - Barr Lake Banding Station

Bird Conservancy of the Rockies