Saturday 4 May 2024

[cobirds] Dinosaur Ridge - Denver Field Ornithologists (04 May 2024) 33 Raptors

Dinosaur Ridge - Denver Field Ornithologists
Colorado, USA

Daily Raptor Counts: May 04, 2024
SpeciesDay's CountMonth TotalSeason Total
Black Vulture000
Turkey Vulture1136381
Osprey0252
Bald Eagle1449
Northern Harrier0427
Sharp-shinned Hawk16105
Cooper's Hawk628224
American Goshawk009
Red-shouldered Hawk000
Broad-winged Hawk021135
Red-tailed Hawk528451
Rough-legged Hawk000
Swainson's Hawk4445
Ferruginous Hawk0222
Golden Eagle2325
American Kestrel351484
Merlin0121
Peregrine Falcon0315
Prairie Falcon006
Mississippi Kite000
Unknown Accipiter0013
Unknown Buteo026
Unknown Falcon006
Unknown Eagle000
Unknown Raptor003
Total:331952079


Observation start time: 08:00:00
Observation end time: 17:00:00
Total observation time: 9 hours
Official CounterDustin Kohler
Observers: Jessica Colby, Lori Morton, Lynn Bocken, Natalie Uschner-Arroyo, Zach Haag



Visitors:
We had 71 visitors to the ridge today. One person was jogging with hiking sticks. I have seen a lot of people with walking sticks and a lot of runners, but this was my first time seeing both. There was another visitor who sounded like the singer Reba. There was also a visitor to the ridge today who works in the HR department for Jefferson County Open Space, I believe. He was also from the St. Louis, Missouri area (like me), and was wearing a Kshe95 (radio station) T-shirt.

Weather:
Today started cold and cloudy and ended warm and relatively cloudless. The wind was very gusty and the gust were pretty far apart most of the day. The wind varied from Northeast to Southeast, but was mostly east all day. A distant haze affected our visibility all day.

Raptor Observations:
Today started slow and continued to do so throughout the day. The few migrants we had today were relatively low compared to the last couple of days, but they were still extremely high. Two Golden Eagles soared up and went North one a few hundred feet behind the other one and went way further north than the closest nest that I know of. A Cooper's Hawk was chased North juvenile Red-tail, and a different Cooper's Hawk was also attacked by a red-tail that I couldn't tell what age it was. We also had a dark morph immature Swainson's hawk and a non-Harlan's dark morph Red-tail. We had a Kettle of 11 Turkey Vultures, but only 8 migrated to the Northwest. In local news we had our usual Red-tails, and one of them was carrying either food or nesting material. I think I saw a squirrel's tail, but it could have been plant material. We also had a Red-tailed hawk chasing a Golden Eagle. There was a Cooper's hawk that went south. The male American Kestrel was back again today a couple times, hunting or just hanging out near us.

Non-raptor Observations:
There was a subdued start today in all activity. We had a lot of blue-gray gnatcatchers screaming all day long. They even outscreamed the Spotted Towhees and Western Meadowlarks. We saw a Western Kingbird, Common Raven, Double Crested Cormorant, American White Pelicans, White-throated Swift, and many swallows.

Predictions:
Tomorrow should be a mostly cloudy day with warm temperatures and a strong wind from the south. I am hoping for a good migrant day.


Report submitted by Official Counter (j.f.peters58@gmail.com)
Dinosaur Ridge - Denver Field Ornithologists information may be found at: http://www.dfobirds.org
More information at hawkcount.org: [Site Profile] [Day Summary] [Month Summary]




Site Description
Dinosaur Ridge is the only regularly staffed hawk watch in Colorado and is the
best place in the world to see migrating Ferruginous Hawks. Hawk watchers may
see 17 species of migrating raptors; and it is an excellent site to see rare
dark morph buteos including Broad-winged hawk, Swainson’s hawk, Ferruginous
hawk, Rough-legged hawk and Red-tailed Hawk. Other raptors we see include Golden
and Bald Eagles, Northern harrier, Osprey, Peregrine Falcons, Prairie Falcons,
Cooper's and Sharp-shinned Hawks, American Kestrels, Merlin, and Turkey
Vultures. American Goshawk is uncommon but also counted each season. Non-raptor
species include Rock Wren, Bushtit, Western Bluebird, Sandhill Crane,
White-throated Swift, American White Pelican, and Dusky Grouse. Birders of any
skill level are always welcome. The hawk watch at Dinosaur Ridge is staffed by a
Hawk Counter and volunteers from 10:00 AM to 6:00 PM from March 1st to May 10th,
weather permitting.

Directions to site:
From exit 259 on I-70 towards Morrison, drive south under freeway and take left
into first parking lot, the Stegosaurus lot. Follow hawk watch signs from the
southwest end of the parking lot to the hawk watch site. The hike starts heading
east on an old two-track and quickly turns south onto a trail on the west side
of the ridge. When the trail nears the top of the ridge, turn left, and walk to
the flat area at the crest of the ridge. (Distance: 0.56 miles, Elevation gain:
259 feet)

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[cobirds] Bird Conservancy of the Rockies - Chatfield Banding Station, 5/4/24

On a morning that was cloudy and cold until about 11 a.m., we had a not bad day with a nice mix of expected early spring birds.  16 new birds caught today:

House Wren 4 new, 1 banded 2022 (a species that breeds here; we should be seeing these numbers and more each day for the next few weeks)
Blue-grey Gnatcatcher 1 
Orange-crowned Warbler 1
Common Yellowthroat 1
Spotted Towhee 2
Green-tailed Towhee 1
Song Sparrow 1
Lincoln's Sparrow 1
White-crowned Sparrow, Gambel's 1
White-crowned Sparrow, Mountain 1
Red-winged Blackbird 1

We are banding Tuesday through Sunday (closed Mondays) through May 31, weather permitting.  You can register to visit on the weekends through the Denver Audubon website.  (Some times/days are sold out, so sign up now if you are interested!)

Meredith McBurney
Bander, Chatfield Banding Station
Bird Conservancy of the Rockies

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[cobirds] Pine Siskins, Louisville

A small flock (about 6) of siskins was just in my Washington Hawthorne tree!  As I walked out my front door, I heard them calling.   I've had dozens of American Goldfinches at my feeders recently, but I haven't seen any siskins here for years.

Paula Hansley
Boulder County

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[cobirds] BIRD BOMBS: Spring Into Warblers 2 explodes May 9, and spring ID resources

Hi Birders,

Get set for the next ID blast this Thursday May 9 and Register here for BIRD BOMBS: Spring Into Warblers 2. Learn about identification of Colorado's spring warblers with a focus on our nesting species.



Also check out videos of these episodes about other Colorado spring migrants and nesting species at DFO's BIRD BOMBS video library:


David Suddjian
Littleton, CO

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[cobirds] CSR, El Paso Co., Sat.

Hey COBirders,

I had a pretty good day banding at Clear Spring Ranch, Saturday. While it was cloudy, cold, and breezy until 10:00, some birds were active early. 18 birds banded, and three recaps from this week, mostly before 8:30. Including:

2 Blue-gray Gnatcatchers (4 this week)
8 Yellow-rumped Warblers in one net, 5 Audubon's and 3 Myrtles. (I only usually catch 2-3 per year because they stay so high, so this was a surprise.)
5 Orange-crowned Warblers, 3 orestera ssp, and 2 celata ssp
Virginia's Warbler and Com Yellowthroat recaps from yesterday
Lincoln's (new) and Song (recap) Sparrows, Spotted Towhee (F).

Plus saw the first swallow of the season, a N Rough-winged, and the first Black-headed Grosbeak (M).

Bird Cast predicts a High migration rate tonight, so we'll see if that translates to some new birds.

Have a birdy weekend,
Steve Brown
Colo Spgs


Sent from my iPad

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[cobirds] Chico Basin Ranch Banding Report/ Bird Conservancy of the Rockies- May 4, 2024

I thought Colorado was a sunshine state but at least this week the clouds have been heavy and do not break up until @9:30- 10 o'clock. These mornings have been very cool with little to no insects moving around for birds to follow and catch. Four bird species captured in the nets today.

3 New Birds Banded
Blue-gray Gnatcatcher
Yellow Warbler
Swainson's Thrush

1 Recapture- banded yesterday
Orange-crowned Warbler gained mass (weight) from yesterday.

A few Bullock's Orioles were high in the cottonwoods and an Ash-throated Flycatcher was flitting around the trees as well.

***Remember Chico Basin is open to a limited number of people each day during this month. Please go to the Aiken Audubon Website to register for a morning to visit. There is a daily registration fee.

Enjoy the day and please visit the banding station when you visit the Ranch. Let me know what you are seeing. We open at Sunrise and operate until @11 am. 
Have a good weekend!

Julie Shieldcastle, Bander
Chico Basin Ranch
Bird Conservancy of the Rockies

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Friday 3 May 2024

[cobirds] Dinosaur Ridge - Denver Field Ornithologists (03 May 2024) 37 Raptors

Dinosaur Ridge - Denver Field Ornithologists
Colorado, USA

Daily Raptor Counts: May 03, 2024
SpeciesDay's CountMonth TotalSeason Total
Black Vulture000
Turkey Vulture325370
Osprey0252
Bald Eagle1348
Northern Harrier0427
Sharp-shinned Hawk25104
Cooper's Hawk922218
American Goshawk009
Red-shouldered Hawk000
Broad-winged Hawk1221135
Red-tailed Hawk623446
Rough-legged Hawk000
Swainson's Hawk0041
Ferruginous Hawk1222
Golden Eagle0123
American Kestrel348481
Merlin0121
Peregrine Falcon0315
Prairie Falcon006
Mississippi Kite000
Unknown Accipiter0013
Unknown Buteo026
Unknown Falcon006
Unknown Eagle000
Unknown Raptor003
Total:371622046


Observation start time: 08:00:00
Observation end time: 14:30:00
Total observation time: 6.5 hours
Official CounterDustin Kohler
Observers: Bill Young, Chris Gearhart, Sammy Korengut , Shannon Campbell, Steve Ryder



Visitors:
We had 37 visitors to the ridge today including Piper Vance who came up with her family and said "There's one!" She spotted one of our Cooper's Hawks that migrated today.

Weather:
Today was an overall sunny day that got more overcast as the day went on. Warm temperatures and a steady, moderately strong wind were good conditions for our migrants. The wind then began shifting from the west and eventually the north and increased its gusts to over 25 mph consistently which caused us to cut the count short. There was a consistent haze that made distant migrants even harder to find and follow.

Raptor Observations:
The migrants were in all directions but were mostly straight above us and very high. The migrants started low for the first hour but rose higher and higher as the day and the wind increased. Our first three Broadwings left one after the other in a line, but we didn't see the kettle that they left from. A later Broadwing we hear vocalizing at another one above it. We had a Cooper's Hawk aggressively defend itself from a local Red-tail that moved up to escort them north. Another Cooper's Hawk that migrated was missing 2 secondaries on their right wing. A different Cooper's was attacked by a migrating kestrel as it left town. As the wind increased our migrants got even higher up and were traveling a lot faster until the wind switched to the west. We had a kettle of 6 Turkey Vultures that went north for a few miles before turning around and going back south. Much later we also had a Swainson's Hawk go to the South. We had an immature Peregrine Falcon fly south at eye level. One of our other local Falcons was a Merlin that attacked a Red-tail on its way south. We had a Golden Eagle hunting to the west, and a Cooper's Hawk had a talon full of grass, and a mouse, as it flew off towards where its nest is located. During the heavier winds, I heard a squeaking sound. I looked over and saw a mouse screaming in terror as a male Kestrel had caught it and was flying south with it.

Non-raptor Observations:
We had a lot of Broad-tailed Hummingbirds zip past us in the wind, they were more heard than seen. There were also plenty of Swallows and White-throated Swifts playing in the wind as well. However, once the wind got above 20 mph the Swallows and Swifts must have gone to ground because we were not seeing them. We saw another Western Kingbird this morning and some Common Grackles. Blue-gray Gnatcatchers also continue to remind us that they are back in town, challenging the Spotted Towhees and the Woodhouse's Scrub-Jay for the loudest birds at the ridge.

Predictions:
Tomorrow looks to be a moderately warm day with a steady eastern wind. The clouds look to cover more and more of the sky as the day goes on for the third day in a row. There is some rain in the evening that might give our migrants some incentive to leave a little earlier in the day.


Report submitted by Official Counter (j.f.peters58@gmail.com)
Dinosaur Ridge - Denver Field Ornithologists information may be found at: http://www.dfobirds.org
More information at hawkcount.org: [Site Profile] [Day Summary] [Month Summary]




Site Description
Dinosaur Ridge is the only regularly staffed hawk watch in Colorado and is the
best place in the world to see migrating Ferruginous Hawks. Hawk watchers may
see 17 species of migrating raptors; and it is an excellent site to see rare
dark morph buteos including Broad-winged hawk, Swainson’s hawk, Ferruginous
hawk, Rough-legged hawk and Red-tailed Hawk. Other raptors we see include Golden
and Bald Eagles, Northern harrier, Osprey, Peregrine Falcons, Prairie Falcons,
Cooper's and Sharp-shinned Hawks, American Kestrels, Merlin, and Turkey
Vultures. American Goshawk is uncommon but also counted each season. Non-raptor
species include Rock Wren, Bushtit, Western Bluebird, Sandhill Crane,
White-throated Swift, American White Pelican, and Dusky Grouse. Birders of any
skill level are always welcome. The hawk watch at Dinosaur Ridge is staffed by a
Hawk Counter and volunteers from 10:00 AM to 6:00 PM from March 1st to May 10th,
weather permitting.

Directions to site:
From exit 259 on I-70 towards Morrison, drive south under freeway and take left
into first parking lot, the Stegosaurus lot. Follow hawk watch signs from the
southwest end of the parking lot to the hawk watch site. The hike starts heading
east on an old two-track and quickly turns south onto a trail on the west side
of the ridge. When the trail nears the top of the ridge, turn left, and walk to
the flat area at the crest of the ridge. (Distance: 0.56 miles, Elevation gain:
259 feet)

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