Friday, 24 April 2026

[cobirds] Dinosaur Ridge - Denver Field Ornithologists (24 Apr 2026) 26 Raptors

Dinosaur Ridge - Denver Field Ornithologists
Golden, Colorado, USA

Daily Raptor Counts: Apr 24, 2026
Species Day's Count Month Total Season Total
Black Vulture 0 0 0
Turkey Vulture 2 134 161
Osprey 0 34 40
Bald Eagle 0 11 24
Northern Harrier 0 21 33
Sharp-shinned Hawk 7 109 130
Cooper's Hawk 5 160 212
American Goshawk 0 0 1
Red-shouldered Hawk 0 0 0
Broad-winged Hawk 1 32 32
Red-tailed Hawk 5 189 437
Rough-legged Hawk 0 0 0
Swainson's Hawk 0 20 20
Ferruginous Hawk 0 6 15
Golden Eagle 0 1 8
American Kestrel 5 467 606
Merlin 0 4 7
Peregrine Falcon 0 2 4
Prairie Falcon 0 2 4
Mississippi Kite 0 0 0
Unknown Accipitrine 1 11 17
Unknown Buteo 0 2 5
Unknown Falcon 0 3 4
Unknown Eagle 0 0 0
Unknown Raptor 0 3 4
Total: 26 1211 1764


Observation start time: 08:30:00
Observation end time: 17:00:00
Total observation time: 9 hours
Official Counter Soren Zappia
Observers:



Visitors:
6 visitors. We had four teams of volunteers from EY visit today! It was great to meet all of them and they helped us spot birds and greet visitors. We enjoyed watching both local and migrant birds and saw lots of territorial disputes. Thank you to Haley from EY for leading the groups, teaching them about our site, and making the hike up four times today. We also want to thank Leslie Dixon, Kathie Moses, and Steve Price for their help and working with our visiting volunteers!

Weather:
It started as a beautiful day with a light SE wind, clear skies, and temperatures in the mid 50s F. This continued until around 13:00 MST when the WNW winds started to pick up. Winds were anywhere from 3-5 bft but would come intermittently with periods of calm. Cloud cover increased gradually throughout the day, with few clouds for most the morning, scattered clouds for most of the afternoon, and a mostly cloudy sky for the final hour.

Raptor Observations:
We had a few more migrants than prior days, with juvenile Red-tailed Hawks, Cooper's Hawks, Sharp-shinned Hawks, and American Kestrels making up the majority of migrating birds. We saw a single adult Broad-winged Hawk fly past midday low and distant on the west side, lower than we usually see them. It was a slow and steady pace throughout the day, with birds coming on a variety of paths, including some at or below eye level in the afternoon when winds were highest. Local birds were quite territorial and often chased off migrant birds, especially the migrant juvenile RTs. A local Cooper's Hawk was also seen chasing off migrant accipitrines. Outside of raptors, we saw our first of season Cliff Swallow and two Northern Rough-winged Swallows.

Non-raptor Observations:
White-throated Swift 45, Broad-tailed Hummingbird 2, Mourning Dove 1, Double-crested Cormorant 5, Woodhouse's Scrub Jay 2, Black-billed Magpie 1, Common Raven 2, Black-capped Chickadee 1, Violet-green Swallow 27, Northern Rough-winged Swallow 2, Cliff Swallow 1, Rock Wren 1, Blue-grey Gnatcatcher 1, House Finch 2, Pine Siskin 2, Spotted Towhee 2, Western Meadowlark 1

Predictions:
Tomorrow, temperatures are predicted to be cool in the 40s and 50s F. Sun is predicted for the first hour or two, but overcast skies are predicted for the remainder of the day. We are hopeful to get a break from the west winds that have been here the past few days, with light N and E winds predicted throughout the day.


Report submitted by Official Counter of the day shown above (dinoridgehw@gmail.com)
Dinosaur Ridge - Denver Field Ornithologists information may be found at: www.dinosaurridgehawkwatch.org
More information at hawkcount.org: [Site Profile] [Day Summary] [Month Summary]
Count data submitted via Trektellen.org - [Project Details]




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, and American White Pelican. Birders of any skill level are
always welcome. The hawk watch at Dinosaur Ridge is staffed by Hawk Counter(s)
and volunteers from March through early May.

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] Opening Day - Chatfield Banding Station, Bird Conservancy of the Rockies 4-24-26

Welcome to Spring Banding Season!

We had a very nice mix of birds for this crisp, cool, but sunny opening day.  We caught 15 birds, including many of the species that we expect to catch in late April, which always comes as a relief when it happens.  

Four of the birds were returns from last year, including a pair of Northern House Wrens that were banded on the same day last year (May 21), a male and female that at that time were both in breeding condition.  They were caught in the same net last year, and in the same but different net today........love is in the air?!

Here's a breakdown of our first day's 15 birds:

Bushtit 1
Northern House Wren 3 new, 2 returns (see above)
Blue-gray Gnatcatcher 1
Hermit Thrush 1
Spotted Towhee 1 (first capture of season))
Song Sparrow 1 new, 1 banded 2025
White-crowned Sparrow, Gambel's 2
Red-winged Blackbird 1, banded 2025
American Goldfinch 1

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 through the Denver Audubon website.  (Many/most sessions are already sold out, so sign up now if you are interested!)

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Re: [cobirds] Going Going Gone

Always enjoy your posts. John. Treva is now 85 and and I'm now 88. Leon Bright 

On Mar 21, 2026 12:58 PM, John Rawinski <johnrawinski0@gmail.com> wrote:
The last two days had me doing yard work at my home. And I am just beneath the NW flight line of the cranes. Hundreds and hundreds of cranes left the Valley in the last few days. A bike trip at the refuge at mid day today showed very few on their loafing areas. So it seems like the show is over until next fall. 

John Rawinski
Monte Vista, CO

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Thursday, 23 April 2026

[cobirds] Dinosaur Ridge - Denver Field Ornithologists (23 Apr 2026) 6 Raptors

Dinosaur Ridge - Denver Field Ornithologists
Golden, Colorado, USA

Daily Raptor Counts: Apr 23, 2026
Species Day's Count Month Total Season Total
Black Vulture 0 0 0
Turkey Vulture 0 132 159
Osprey 0 34 40
Bald Eagle 0 11 24
Northern Harrier 1 21 33
Sharp-shinned Hawk 0 102 123
Cooper's Hawk 0 155 207
American Goshawk 0 0 1
Red-shouldered Hawk 0 0 0
Broad-winged Hawk 0 31 31
Red-tailed Hawk 1 184 432
Rough-legged Hawk 0 0 0
Swainson's Hawk 0 20 20
Ferruginous Hawk 0 6 15
Golden Eagle 0 1 8
American Kestrel 2 462 601
Merlin 1 4 7
Peregrine Falcon 1 2 4
Prairie Falcon 0 2 4
Mississippi Kite 0 0 0
Unknown Accipitrine 0 10 16
Unknown Buteo 0 2 5
Unknown Falcon 0 3 4
Unknown Eagle 0 0 0
Unknown Raptor 0 3 4
Total: 6 1185 1738


Observation start time: 05:30:00
Observation end time: 17:00:00
Total observation time: 8.75 hours
Official Counter Emma Riley, Emma Riley, Soren Zappia , Soren Zappia
Observers:



Visitors:
We had five visitors at the ridge today including Jessie and Therese, two AmeriCorps Environmental Educators for Denver Audubon and Bird Conservancy of the Rockies. Ryan Gannon is our Thursday afternoon volunteer at the ridge and we are so grateful for his help!

Weather:
Winds were high again today causing us to pause the count from 0815 MST to 1100 MST. Winds varied in direction and speed today. Temperatures were warm in the early afternoon before dropping with increased cloud cover in the late afternoon.

Raptor Observations:
Migration has been halted this week by winds from the west. Our first migrating raptors came during the last few hours of the day. What we didn't get in quantity today we got in quality with our first two migrants being an eye-level Merlin and a below eye-level Peregrine Falcon. We also had an eye-level immature Northern Harrier that came directly along the ridge. Non-migrant activity was high today with up to four Red-tailed Hawks and five Turkey Vultures active in the area at one time. Both adult and immature Red-tailed Hawks were seen kiting and acting territorial in the area. Today was our first day monitoring the passerine morning flight but we seem to be a little early. A Hermit Thrush, Chipping Sparrow, and a Northern Rough-winged Swallow were a few highlights from the morning.

Non-raptor Observations:
Mallard 3, White-throated Swift 5, Broad-tailed Hummingbird 5, Eurasian Collared-Dove 2, Mourning Dove 5, Double-crested Cormorant 1, Say's Phoebe 1, Blue Jay 2, Woodhouse's Scrub Jay 1, Black-billed Magpie 1, American Crow 1, Common Raven 2, Black-capped Chickadee 1, Violet-green Swallow 11, Northern Rough-winged Swallow 1, swalow sp. 1, Rock Wren 1, Blue-grey Gnatcatcher 2, Hermit Thrush 1, American Robin 1, Chipping Sparrow 1, Spotted Towhee 3, Western Meadowlark 1, Red-winged Blackbird 10, Common Grackle 5, Yellow-rumped Warbler 1, passerine sp. 6

Predictions:
Winds are predicted to be lower speeds tomorrow but variable in direction. We are hoping any day now that migration picks back up.


Report submitted by Official Counter of the day shown above (dinoridgehw@gmail.com)
Dinosaur Ridge - Denver Field Ornithologists information may be found at: www.dinosaurridgehawkwatch.org
More information at hawkcount.org: [Site Profile] [Day Summary] [Month Summary]
Count data submitted via Trektellen.org - [Project Details]




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, and American White Pelican. Birders of any skill level are
always welcome. The hawk watch at Dinosaur Ridge is staffed by Hawk Counter(s)
and volunteers from March through early May.

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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Wednesday, 22 April 2026

Re: [cobirds] Follow-up on Cherry Creek SP Harlequin Duck report?

Hi all,
 even after including rarities I can't find a way to report my sighting of the Harlequin Duck on eBird. 
Help?
Thanks

Rosanne Juergens



On Mon, Apr 20, 2026 at 1:49 PM Doug Faulkner <zebrilus@gmail.com> wrote:
The bird can also be viewed from West Shades picnic area.

Doug Faulkner
Arvada, CO

On Mon, Apr 20, 2026, 11:49 AM 'Norm Lewis' via Colorado Birds <cobirds@googlegroups.com> wrote:
Harlequin is being seen from west area of Lake Loop.
Norm Lewis
Sent from my iPhone


On Apr 20, 2026, at 11:31 AM, 'Norm Lewis' via Colorado Birds <cobirds@googlegroups.com> wrote:

No one at Lake Loop- any updates?
Norm
Sent from my iPhone


On Apr 20, 2026, at 10:58 AM, Maggie Boswell <picab46@gmail.com> wrote:

Best viewing from Lake Loop I’m told.

On Apr 20, 2026, at 10:55 AM, 'Norm Lewis' via Colorado Birds <cobirds@googlegroups.com> wrote:

Is there a location for the bird?
Norm Lewis
Sent from my iPhone


On Apr 20, 2026, at 10:36 AM, Bryan Guarente <bryan.guarente@gmail.com> wrote:


Multiple folks are there now looking at it. Photos snapped as well. Adult male. 

Bryan Guarente
Meteorologist/Instructional Designer
UCAR/The COMET Program
Boulder, CO


On Mon, Apr 20, 2026 at 10:29 AM Thomas Heinrich <teheinrich@gmail.com> wrote:
Has anyone been out to Cherry Creek SP to follow up on the Harlequin Duck reported on eBird this morning?

Thomas Heinrich
Boulder, CO
Nyctea@aol.com

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[cobirds] Dinosaur Ridge - Denver Field Ornithologists (22 Apr 2026) 6 Raptors

Dinosaur Ridge - Denver Field Ornithologists
Golden, Colorado, USA

Daily Raptor Counts: Apr 22, 2026
Species Day's Count Month Total Season Total
Black Vulture 0 0 0
Turkey Vulture 0 132 159
Osprey 0 34 40
Bald Eagle 0 11 24
Northern Harrier 0 20 32
Sharp-shinned Hawk 1 101 122
Cooper's Hawk 1 155 207
American Goshawk 0 0 1
Red-shouldered Hawk 0 0 0
Broad-winged Hawk 0 31 31
Red-tailed Hawk 2 183 431
Rough-legged Hawk 0 0 0
Swainson's Hawk 0 20 20
Ferruginous Hawk 0 6 15
Golden Eagle 0 1 8
American Kestrel 2 460 599
Merlin 0 3 6
Peregrine Falcon 0 1 3
Prairie Falcon 0 2 4
Mississippi Kite 0 0 0
Unknown Accipitrine 0 10 16
Unknown Buteo 0 2 5
Unknown Falcon 0 3 4
Unknown Eagle 0 0 0
Unknown Raptor 0 3 4
Total: 6 1178 1731


Observation start time: 08:30:00
Observation end time: 15:15:00
Total observation time: 6.75 hours
Official Counter Emma Riley, Soren Zappia , Soren Zappia
Observers:



Visitors:
17 Visitors. It was fun to watch the mountain bikers come up the trail in the high winds today. We also met a hiker celebrating his birthday. Thank you to Kathie Moses and Cayce and Chris Gulbransen for volunteering today! We appreciate you both for your spotting and for your company.

Weather:
It was a warm and windy day today. Winds were light to moderate, generally from the west, for most of the morning. Humidity was very low throughout the day, reaching 6% RH at one point. Temperatures peaked in the mid 80s in mid-afternoon, before the cloud cover returned and west winds intensified. The wind continued to pick up until the count was ended at 15:15 MST due to high winds.

Raptor Observations:
It was a surprisingly slow day for migration with only 6 birds seen on the total count. Our first bird was a Sharp-shinned Hawk was seen in the first half hour struggling in the winds. Most birds today were overhead, including two juvenile Red-tailed Hawks and a Cooper's Hawk, but we also had a distant American Kestrel to the west and one on the east. Local RTs were kiting in the wind for most of the day - we watched a local RT attempted to fend off a raven while carrying a large snake. There was a lot of swift and swallow activity today, even in high winds. A few Steller's Jays and a sapsucker flew past quickly in the early am.

Non-raptor Observations:
White-throated Swift 10, Broad-tailed Hummingbird 3, Mourning Dove 1, Double-crested Cormorant 1, Red-naped Sapsucker 1, Steller's Jay 2, Woodhouse's Scrub Jay 6, American Crow 1, Common Raven 2, Violet-green Swallow 45, Barn Swallow 2, swalow sp. 50, Rock Wren 1, Blue-grey Gnatcatcher 1, American Robin 1, House Finch 2, American Goldfinch 1, Pine Siskin 1, White-crowned Sparrow 1, Spotted Towhee 1, Western Meadowlark 2

Predictions:
Tomorrow, expect cooler temperatures in the 50s F with sun in the morning and increasing clouds in the afternoon. Winds are forecasted west from 15-20 mph with possible gusts of over 30 MPH.


Report submitted by Official Counter of the day shown above (dinoridgehw@gmail.com)
Dinosaur Ridge - Denver Field Ornithologists information may be found at: www.dinosaurridgehawkwatch.org
More information at hawkcount.org: [Site Profile] [Day Summary] [Month Summary]
Count data submitted via Trektellen.org - [Project Details]




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, and American White Pelican. Birders of any skill level are
always welcome. The hawk watch at Dinosaur Ridge is staffed by Hawk Counter(s)
and volunteers from March through early May.

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] Dinosaur Ridge - Denver Field Ornithologists (22 Apr 2026) 6 Raptors

Dinosaur Ridge - Denver Field Ornithologists
Golden, Colorado, USA

Daily Raptor Counts: Apr 22, 2026
Species Day's Count Month Total Season Total
Black Vulture 0 0 0
Turkey Vulture 0 132 159
Osprey 0 34 40
Bald Eagle 0 11 24
Northern Harrier 0 20 32
Sharp-shinned Hawk 1 101 122
Cooper's Hawk 1 155 207
American Goshawk 0 0 1
Red-shouldered Hawk 0 0 0
Broad-winged Hawk 0 31 31
Red-tailed Hawk 2 183 431
Rough-legged Hawk 0 0 0
Swainson's Hawk 0 20 20
Ferruginous Hawk 0 6 15
Golden Eagle 0 1 8
American Kestrel 2 460 599
Merlin 0 3 6
Peregrine Falcon 0 1 3
Prairie Falcon 0 2 4
Mississippi Kite 0 0 0
Unknown Accipitrine 0 10 16
Unknown Buteo 0 2 5
Unknown Falcon 0 3 4
Unknown Eagle 0 0 0
Unknown Raptor 0 3 4
Total: 6 1178 1731


Observation start time: 08:30:00
Observation end time: 15:15:00
Total observation time: 6.75 hours
Official Counter Emma Riley, Soren Zappia , Soren Zappia
Observers:



Visitors:
17 Visitors. It was fun to watch the mountain bikers come up the trail in the high winds today. We also met a hiker celebrating his birthday. Thank you to Kathie Moses and Cayce and Chris Gulbransen for volunteering today! We appreciate you both for your spotting and for your company.

Weather:
It was a warm and windy day today. Winds were light to moderate, generally from the west, for most of the morning. Humidity was very low throughout the day, reaching 6% RH at one point. Temperatures peaked in the mid 80s in mid-afternoon, before the cloud cover returned and west winds intensified. The wind continued to pick up until the count was ended at 15:15 MST due to high winds.

Raptor Observations:
It was a surprisingly slow day for migration with only 6 birds seen on the total count. Our first bird was a Sharp-shinned Hawk was seen in the first half hour struggling in the winds. Most birds today were overhead, including two juvenile Red-tailed Hawks and a Cooper's Hawk, but we also had a distant American Kestrel to the west and one on the east. Local RTs were kiting in the wind for most of the day - we watched a local RT attempted to fend off a raven while carrying a large snake. There was a lot of swift and swallow activity today, even in high winds. A few Steller's Jays and a sapsucker flew past quickly in the early am.

Non-raptor Observations:
White-throated Swift 10, Broad-tailed Hummingbird 3, Mourning Dove 1, Double-crested Cormorant 1, Red-naped Sapsucker 1, Steller's Jay 2, Woodhouse's Scrub Jay 6, American Crow 1, Common Raven 2, Violet-green Swallow 45, Barn Swallow 2, swalow sp. 50, Rock Wren 1, Blue-grey Gnatcatcher 1, American Robin 1, House Finch 2, American Goldfinch 1, Pine Siskin 1, White-crowned Sparrow 1, Spotted Towhee 1, Western Meadowlark 2

Predictions:
Tomorrow, expect cooler temperatures in the 50s F with sun in the morning and increasing clouds in the afternoon. Winds are forecasted west from 15-20 mph with possible gusts of over 30 MPH.


Report submitted by Official Counter of the day shown above (dinoridgehw@gmail.com)
Dinosaur Ridge - Denver Field Ornithologists information may be found at: www.dinosaurridgehawkwatch.org
More information at hawkcount.org: [Site Profile] [Day Summary] [Month Summary]
Count data submitted via Trektellen.org - [Project Details]




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, and American White Pelican. Birders of any skill level are
always welcome. The hawk watch at Dinosaur Ridge is staffed by Hawk Counter(s)
and volunteers from March through early May.

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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