[cobirds] Chatfield Banding Station, Bird Conservancy of the Rockies 5-15-26

Today was about Catbirds - 15 new, 1 return.  This is the species that for the first time last year was our most caught species (122, compared with 120 Yellow Warblers, our normal #1 species).  Seems to be working on being #1 for a second year!

Totals for the day were 26 newly banded plus 5 returns; a fairly short list of species:

Northern House Wren 3
Gray Catbird 15 new, 1 banded 2025
Yellow Warbler 2 new, 3 banded 2025, 1 banded 2024
MacGillivray's Warbler 1
Yellow-breasted Chat 2
Spotted Towhee 1
Lincoln's Sparrow 2

We are banding Tuesday through Sunday (closed Mondays) through May 31, weather permitting.  There are opportunities for the public to visit on weekends and early mornings most weekdays.  Reservations are required and can be made through the Denver Audubon website.  (Many/most sessions are already sold out, so sign up now if you are interested!)

Meredith McBurney
Bander, Bird Conservancy of the Rockies

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[cobirds] Common Nighthawk captured in downtown Denver

Hi

Just heard from Steve Weil, owner of Rockmont Ranchware in Downtown Denver, that a Common Nighthawk flew into his store and found refuge in the stores rafters. Several agency were called to help including DOW. Finally after various bird professionals using ladders, climbing from rafter to rafter the night hawk was safely captured and released safely into the wild.

Bob Righter Denver

[cobirds] Chico Basin Ranch Banding Station Report- May 15, 2026-Bird Conservancy of the Rockies

A quiet morning for birds on the front range here at Chico Basin Ranch. Some nice birds but still no quantity. Swainson's Thrushes appeared again today. It must have been my singing that brought them in. HA! The highlight of the day was a Veery caught first net check.

20 New Banded Birds

Yellow Warbler- 1

MacGillivray's Warbler-1

Common Yellowthroat- 1

Willow Flycatcher-1

American Goldfinch- 1

Lazuli Bunting- 1

Blue Grosbeak- 1

Brown-headed Cowbird- 1

Gray Catbird- 1

Bullock's Oriole- 2

Veery- 1

Swainson's Thrush- 5

Northern House Wren- 2

4 Recaptures

Yellow Warbler

MacGillivray's Warbler

Bullock's Oriole

Northern House Wren

The Banding Station will be open tomorrow from Sunrise until @ 11AM. If wanting to bird the ranch, please register on the Aiken Audubon website www.aikenaudubon.com.

Have a good weekend,

Julie Shieldcastle

Bander, Chico Basin Ranch

Bird Conservancy of the Rockies

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[cobirds] Chatfield Banding Station, Bird Conservancy of the Rockies 5-14-26

A day similar to yesterday; birds slow but steady throughout the morning, primarily adding to the numbers of a few of our most commonly caught species - Catbirds, Chats and Yellow Warblers.  An interesting capture was our 2nd Pine Siskin of the season - a male in breeding condition that is probably the mate to the female caught on May 1 (4th and 5th PISIs ever caught at the station).

Here's the breakdown of today's 27 new and  2 returns:

Western Wood-Pewee 1 FOS
Northern House Wren 2
Blue-gray Gnatcatcher 1
Gray Catbird 5 new, 1 banded 2023
Yellow Warbler 5 new, 1 banded 2023
Northern Waterthrush 1
Wilson's Warbler 2
Yellow-breasted Chat 5
Lincoln's Sparrow 1
White-crowned Sparrow, Mountain 1
Pine Siskin 1
American Goldfinch 2

We are banding Tuesday through Sunday (closed Mondays) through May 31, weather permitting.  There are opportunities for the public to visit on weekends and early mornings most weekdays.  Reservations are required and can be made through the Denver Audubon website.  (Many/most sessions are already sold out, so sign up now if you are interested!)

Meredith McBurney
Bander, Bird Conservancy of the Rockies

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[cobirds] Chico Basin Ranch Banding Station Report- May 14, 2026-Bird Conservancy of the Rockies

Still no large numbers of any species observed at the station. There was a nice variety however. Fourteen bird species captured today. I hear a song... Where are all the Swainson's Thrushes ... Are They long time passing or not here yet. We are still catching Hermit Thrushes and someone observed a Swainson's Thrush but they should be coming in double digits or more usually by now. Strong West wind kept the mistnets from catching birds as efficiently as normal but it still gave us a glimpse of what was around.

28New Banded Birds

Virginia's Warbler- 1

Yellow Warbler- 1

Common Yellowthroat- 1

MacGillivray's Warbler- 1

Lesser Goldfinch- 2

Northern House Wren- 2

Lincoln's Sparrow- 1

Lazuli Bunting- 4

Hermit Thrush- 4

Orchard Oriole- 1

Ash-throated Flycatcher- 1

Western Tanager- 3

Bullock's Oriole- 5

Gray Catbird- 1

1 Recapture

Bullock's Oriole

The Banding Station will be open tomorrow through Saturday from Sunrise until @ 11AM. Flying Diamond has put an electric fence around the area of the banding station woods because they are grazing cattle in the area around the houses. Please use the 4 gates on the wooden fence around the banding station building to access the wooded area around the banding station. Please close gates when you enter and leave. I am very grateful that Flying Diamond folks are conscientious to keep the banding area out of cattle reach while we are banding. Thank you very much!

 If interested in birding the ranch, Please register on the Aiken Audubon website www.aikenaudubon.com

Stop by and share your bird sightings if you are in the area. We like to hear what observations you have made.

Have a good day,

Julie Shieldcastle

Bander, Chico Basin Ranch

Bird Conservancy of the Rockies

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[cobirds] Clear Spring Ranch-Banding?

Hi all!

Can I please get some information on the banding station at Clear Spring Ranch in Fountain? Is it open for visitors? Hours? Fees? etc.

I have some squirrelly Scouts who might want to try their hand at birding and their attention spans are pretty limited for the drive out to Chico!  (Sorry, Julie!  LOL)

Suzanne Schwartze

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[cobirds] Sawhill Ponds, Boulder County — new arrivals

Birders,

Many new birds heard and seen this morning, including Western Warbling Vireo, Northern Yellowthroat, Yellow-breasted Chat, Gray Catbird, and Black-headed Grosbeak.

I did not obtain a recording of the vireo; however, I am confident of my identification.

See checklist # S338873956.

Paula Hansley

Louisville 

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