Tuesday, 27 October 2026

Re: [cobirds] Marsh Wren vs Western Marsh Wren

Ebird asked to wait until they are finished updating before you make changes. They will post on the website when the are done


Todd Deininger
Longmont, CO

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"Your assumptions are your windows on the world. Scrub them off every once in a  while, or the light won't come in.
-- Isaac Asimov

On Tue, Oct 27, 2026, 11:09 AM behn...@gmail.com <behnfield@gmail.com> wrote:
Greetings all!

This morning I began getting Colorado Needs Alerts for Western Marsh Wren. Will this resolve itself or is there some action I need to take?

Good birding!

Tom Behnfield
Lakewood/Jefferson County

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[cobirds] Marsh Wren vs Western Marsh Wren

Greetings all!

This morning I began getting Colorado Needs Alerts for Western Marsh Wren. Will this resolve itself or is there some action I need to take?

Good birding!

Tom Behnfield
Lakewood/Jefferson County
behnfield@gmail.com

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Monday, 26 October 2026

[cobirds] Re: anyone want to go to Colorado springs tomorrow?

My godson, Topi Martinez, wants to go to Colorado Springs tomorrow, Tuesday, to look for a reported sharp tailed sandpiper.  I can’t go.  Please reply only to me if someone is going and he could go with you. Thank you. 



Elena Holly Klaver
United States Court Certified Interpreter
Conference Interpreter English < > Spanish
303.475.5189
Member: 
Colorado Interpreters & Translators Association (CITA)
American Translators Association (ATA)
National Association of Judiciary Interpreters and Translators (NAJIT)


I acknowledge that I live in the territory of Hinóno'éí  (Arapaho) and Cheyenne nations, according to the 1851 Treaty of Fort Laramie, and that Colorado's Front Range is home to the Ute and many other Native peoples.  Reconozco que vivo en el territorio de las naciones Hinóno’éí (Arapaho) y Cheyenne, según el Tratado de Fort Laramie en 1851, y que el estado de Colorado al este de las Montañas Rocosas es territorio de los Utes y muchos otros pueblos indígenas. 


[cobirds] Mountain irruption in my north-central Boulder yard

The irruption of mountain species to the plains has shown up in my yard in north-central Boulder. Over the past few weeks, I’ve had a trickle of species that are unusual for my yard: Steller’s Jays, Pygmy Nuthatches, and Cassin’s Finches.

But then today!!!

This single afternoon I’ve had in the yard:

  • FOUR Steller’s Jays at once (only every seen 19 times in my 30 years in the house, and never more than one per day)
  • NINE Cassin’s Finches at once, growing in numbers as the day progresses from two seen this morning to the mob on the feeder this afternoon (only seen 10 times in the yard outside of the spring of 2023 when they were all over Boulder)
  • TWO Pygmy Nuthatches (only seen five times in the yard before this year)
  • ONE Mountain Chickadee (only see in 10 of the 30 years since I’ve lived in the house)

At one point, all four of these species were in the yard at the same time.

And this morning, on my usual morning dog walk around the Boulder Community Gardens a block from my house, there was a vocalizing Evening Grosbeak — only the second time I’ve seen an EVGR at the Gardens ever. (Too bad it wasn’t in my yard: I’ve only ever had one EVGR in the years, in 2001.)

For context, my backyard is an ordinary urbanish backyard about 3/4 of a mile east of Mt Sanitas. Even though these mountain species are relatively common on Mt Sanitas, they rarely venture that short distance down from the pine forest to my yard, despite the attraction of my feeders and bird bath.

So what’s going on in the mountains that is driving these species east?  Little water, few insects, poor cone crops?

Richard Trinkner
Boulder

[cobirds] Bobcat Ridge hawk sighting

To respond to Ron Bolton’s query about a hawk he recently saw at Bobcat Ridge National Area,

I’ve done monthly bird surveys at Bobcat Ridge for many years, and cannot remember seeing a Broad-winged Hawk there.  We saw both Cooper’s and Sharp-shinned Hawks there in September.  We see both accipiters not frequently, but regularly, at Bobcat Ridge.

 

The City of Fort Collins (Fort Collins Open Lands owns Bobcat Ridge Natural Area) is now putting together a spreadsheet for the data we have collected over the years that should be made available to the public – then a better answer might be available to Ron’s question about Broad-winged Hawks at Bobcat Ridge.  A look at eBird records for the site might also be informative.

 

Denise Bretting

Loveland

Sunday, 25 October 2026

[cobirds] Mount Zion Hawk Watch at Windy Saddle Park (25 Oct 2026) 4 Raptors

Mount Zion Hawk Watch at Windy Saddle Park
Golden, Greater Denver, Colorado, USA

To see hourly weather data and details of migrant raptors, look up this watch at hawkcount.org. This is a new raptor migration site identified and designated in mid-September 2024. This is Colorado's 1st fall hawk watch site, and the second hawk watch in Colorado. To get to the site which is along Lookout Mountain Rd. in Golden, enter either Windy Saddle Park or Mount Zion into Google Maps on your favorite navigation app, or enter the coordinates 39.7368,-105.2454. From the parking lot ascend the stone steps to the watch site. EVERYONE IS WELCOME TO THE HAWK WATCH TO ENJOY THE SPECTACLE OF RAPTOR MIGRATION, EVEN IF YOU KNOW NOTHING ABOUT IDENTIFYING RAPTORS IN FLIGHT. We will help you to learn Raptor ID if you are interested. See https://groups.google.com/g/cobirds/c/Oznn4uc6MBk

Daily Raptor Counts: Oct 25, 2026
Species Day's Count Month Total Season Total
Black Vulture 0 0 0
Turkey Vulture 0 22 270
Osprey 0 3 29
Bald Eagle 0 2 7
Northern Harrier 0 7 25
Sharp-shinned Hawk 1 26 45
Cooper's Hawk 1 94 274
American Goshawk 0 0 0
Broad-winged Hawk 0 7 109
Red-tailed Hawk 1 174 649
Rough-legged Hawk 0 0 0
Swainson's Hawk 0 5 194
Ferruginous Hawk 0 1 2
Golden Eagle 0 10 24
American Kestrel 0 15 144
Merlin 0 2 6
Peregrine Falcon 0 0 1
Prairie Falcon 0 0 2
Mississippi Kite 0 0 0
Unknown Accipitrine 0 1 4
Unknown Buteo 1 2 9
Unknown Falcon 0 0 0
Unknown Eagle 0 0 0
Unknown Raptor 0 9 19
Total: 4 380 1813


Observation start time: 08:45:00
Observation end time: 13:15:00
Total observation time: 4.5 hours
Official Counter Zak Hepler
Observers:



Visitors:
Surprisingly, quite a few visitors today. Two different couples asked me what I was looking for. I was asked if I worked for "CPW" and I said "no, I am a volunteer and this data goes to Hawk Migration Association of North America". One couple told me about nesting Peregrines that they see every year near their home. They were telling me about how poor of flyers the young falcons are when they see them. The other couple asked about Golden Eagles. A few different groups spent a lot of time talking on their cellphones while on speaker. One guy picked up trash and took it down the mountain with him.

Weather:
Very foggy morning at Mount Zion. Visibility was poor and the Towers on Lookout Mountain only became visible after 1130 AM MDT. The fog was pushed by an Eastern wind that persisted throughout the day. Once the fog lifted, there remained much haze over the larger Denver area. In fact, the southwest area of Kestrel Channel remained in haze for the entirety of my watch. While there was no real wind at the watch, I could see a lot of movement in the clouds above signifying a quick moving air current high overhead. National Weather Service forecasted ZERO thermal lift for today. This, along with hardly any wind, made all raptors visible to the naked, unaided, eye.

Raptor Observations:
Not a lot of raptor activity today. I was hoping the moving cold front would create more activity. The end of the season is in sight. The 6 hawk watches operated by Hawk Watch International end their season Nov. 5th. The season end date for the current Mount Zion Fall 2026 season is still TBD. The first migrant was a CH @ 11:53 AM MDT. The next migrant was a Sharpie @ 12:14 PM MDT and the last was a RT @ 12:58 PM MDT. Non-migrant raptors: 7 RT, 1 GE, 1 AK I had great views of a hunting adult male American Kestrel. The bird was found in the namesake Kestrel Channel.

Non-raptor Observations:
The usual subjects at the watch. The one passerine species that piqued the most interest was the large flock of Bushtits that worked their way around The Watch. I was able to record some audio. For the full list of birds see this eBird list: https://ebird.org/checklist/S405420107

Predictions:
A cold and crisp day can be expected at Mount Zion tomorrow. The fog shouldn't be as bad as it was today and the skies should be clearer. There is expected to be the same Eastern wind tomorrow.


Report submitted by Zak Hepler (zakhepler@gmail.com)
More information at hawkcount.org: [Site Profile] [Day Summary] [Month Summary]




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[cobirds] Mount Zion Hawk Watch at Windy Saddle Park (25 Oct 2026) 4 Raptors

Mount Zion Hawk Watch at Windy Saddle Park
Golden, Greater Denver, Colorado, USA

To see hourly weather data and details of migrant raptors, look up this watch at hawkcount.org. This is a new raptor migration site identified and designated in mid-September 2024. This is Colorado's 1st fall hawk watch site, and the second hawk watch in Colorado. To get to the site which is along Lookout Mountain Rd. in Golden, enter either Windy Saddle Park or Mount Zion into Google Maps on your favorite navigation app, or enter the coordinates 39.7368,-105.2454. From the parking lot ascend the stone steps to the watch site. EVERYONE IS WELCOME TO THE HAWK WATCH TO ENJOY THE SPECTACLE OF RAPTOR MIGRATION, EVEN IF YOU KNOW NOTHING ABOUT IDENTIFYING RAPTORS IN FLIGHT. We will help you to learn Raptor ID if you are interested. See https://groups.google.com/g/cobirds/c/Oznn4uc6MBk

Daily Raptor Counts: Oct 25, 2026
Species Day's Count Month Total Season Total
Black Vulture 0 0 0
Turkey Vulture 0 22 270
Osprey 0 3 29
Bald Eagle 0 2 7
Northern Harrier 0 7 25
Sharp-shinned Hawk 1 26 45
Cooper's Hawk 1 94 274
American Goshawk 0 0 0
Broad-winged Hawk 0 7 109
Red-tailed Hawk 1 174 649
Rough-legged Hawk 0 0 0
Swainson's Hawk 0 5 194
Ferruginous Hawk 0 1 2
Golden Eagle 0 10 24
American Kestrel 0 15 144
Merlin 0 2 6
Peregrine Falcon 0 0 1
Prairie Falcon 0 0 2
Mississippi Kite 0 0 0
Unknown Accipitrine 0 1 4
Unknown Buteo 1 2 9
Unknown Falcon 0 0 0
Unknown Eagle 0 0 0
Unknown Raptor 0 9 19
Total: 4 380 1813


Observation start time: 08:45:00
Observation end time: 13:15:00
Total observation time: 4.5 hours
Official Counter Zak Hepler
Observers:



Visitors:
Surprisingly, quite a few visitors today. Two different couples asked me what I was looking for. I was asked if I worked for "CPW" and I said "no, I am a volunteer and this data goes to Hawk Migration Association of North America". One couple told me about nesting Peregrines that they see every year near their home. They were telling me about how poor of flyers the young falcons are when they see them. The other couple asked about Golden Eagles. A few different groups spent a lot of time talking on their cellphones while on speaker. One guy picked up trash and took it down the mountain with him.

Weather:
Very foggy morning at Mount Zion. Visibility was poor and the Towers on Lookout Mountain only became visible after 1130 AM MDT. The fog was pushed by an Eastern wind that persisted throughout the day. Once the fog lifted, there remained much haze over the larger Denver area. In fact, the southwest area of Kestrel Channel remained in haze for the entirety of my watch. While there was no real wind at the watch, I could see a lot of movement in the clouds above signifying a quick moving air current high overhead. National Weather Service forecasted ZERO thermal lift for today. This, along with hardly any wind, made all raptors visible to the naked, unaided, eye.

Raptor Observations:
Not a lot of raptor activity today. I was hoping the moving cold front would create more activity. The end of the season is in sight. The 6 hawk watches operated by Hawk Watch International end their season Nov. 5th. The season end date for the current Mount Zion Fall 2026 season is still TBD. The first migrant was a CH @ 11:53 AM MDT. The next migrant was a Sharpie @ 12:14 PM MDT and the last was a RT @ 12:58 PM MDT. Non-migrant raptors: 7 RT, 1 GE, 1 AK I had great views of a hunting adult male American Kestrel. The bird was found in the namesake Kestrel Channel.

Non-raptor Observations:
The usual subjects at the watch. The one passerine species that piqued the most interest was the large flock of Bushtits that worked their way around The Watch. I was able to record some audio. For the full list of birds see this eBird list: https://ebird.org/checklist/S405420107

Predictions:
A cold and crisp day can be expected at Mount Zion tomorrow. The fog shouldn't be as bad as it was today and the skies should be clearer. There is expected to be the same Eastern wind tomorrow.


Report submitted by Zak Hepler (zakhepler@gmail.com)
More information at hawkcount.org: [Site Profile] [Day Summary] [Month Summary]




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