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Colorado Rare Bird Alert

The report below shows observations of rare birds in Colorado. Includes both unreviewed and reviewed/approved observations.

Observations for last 7 days

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Snow Goose Anser caerulescens

Number observed: 15
UNCONFIRMED
Date: Jan 29, 2023 11:15
Location: 4001–4327 SH-133, Carbondale US-CO 39.36275, -107.20381, Pitkin, Colorado, United States
Observer: Chris Daniels

Snow Goose Anser caerulescens

Number observed: 15
UNCONFIRMED
Date: Jan 26, 2023 14:35
Location: Highway133 Pitkin County Line to KOA, Pitkin, Colorado, United States
Observer: Dick Filby

Snow Goose Anser caerulescens

Number observed: 1
UNCONFIRMED
Date: Jan 30, 2023 16:48
Location: Smith Reservoir SWA, Costilla, Colorado, United States
Observer: Kavanagh McGeough

Ross's Goose Anser rossii

Number observed: 1
UNCONFIRMED
Date: Jan 26, 2023 07:15
Location: Matthew T. Glasser Reservoir, Broomfield, Colorado, United States
Observer: Jason Cole

Ross's Goose Anser rossii

Number observed: 1
UNCONFIRMED
Date: Jan 25, 2023 07:15
Location: Matthew T. Glasser Reservoir, Broomfield, Colorado, United States
Observer: Jason Cole

Ross's Goose Anser rossii

Number observed: 1
UNCONFIRMED
Date: Jan 30, 2023 12:48
Location: Otter Pond area, Montrose, Colorado, United States
Observer: Bill Harris

Ross's Goose Anser rossii

Number observed: 4
UNCONFIRMED
Date: Jan 30, 2023 10:24
Location: Otter Pond area, Montrose, Colorado, United States
Observer: Betty Fenton

Ross's Goose Anser rossii

Number observed: 1
UNCONFIRMED
Date: Jan 29, 2023 16:09
Location: Otter Pond area, Montrose, Colorado, United States
Observer: Sandy Beranich

Ross's Goose Anser rossii

Number observed: 1
UNCONFIRMED
Date: Jan 29, 2023 11:01
Location: Otter Pond area, Montrose, Colorado, United States
Observer: Betty Fenton

Ross's Goose Anser rossii

Number observed: 1
UNCONFIRMED
Date: Jan 29, 2023 10:26
Location: Otter Pond area, Montrose, Colorado, United States
Observer: Jon Horn

Ross's Goose Anser rossii

Number observed: 1
UNCONFIRMED
Date: Jan 28, 2023 11:17
Location: Otter Pond area, Montrose, Colorado, United States
Observer: Betty Fenton

Ross's Goose Anser rossii

Number observed: 1
UNCONFIRMED
Date: Jan 27, 2023 11:03
Location: Otter Pond area, Montrose, Colorado, United States
Observer: David Sinton

Ross's Goose Anser rossii

Number observed: 2
UNCONFIRMED
Date: Jan 30, 2023 16:48
Location: Smith Reservoir SWA, Costilla, Colorado, United States
Observer: Kavanagh McGeough

Greater White-fronted Goose Anser albifrons

Number observed: 1
CONFIRMED
Date: Jan 26, 2023 09:15
Location: Panama Reservoir #1, Boulder, Colorado, United States
Observer: Patrick Morgan

Cackling Goose Branta hutchinsii

Number observed: 6
UNCONFIRMED
Date: Jan 26, 2023 14:35
Location: Highway133 Pitkin County Line to KOA, Pitkin, Colorado, United States
Observer: Dick Filby

Cackling Goose Branta hutchinsii

Number observed: 1
UNCONFIRMED
Date: Jan 30, 2023 12:48
Location: Otter Pond area, Montrose, Colorado, United States
Observer: Bill Harris

Cackling Goose Branta hutchinsii

Number observed: 1
UNCONFIRMED
Date: Jan 29, 2023 10:26
Location: Otter Pond area, Montrose, Colorado, United States
Observer: Jon Horn

Cackling Goose Branta hutchinsii

Number observed: 2
UNCONFIRMED
Date: Jan 28, 2023 11:17
Location: Otter Pond area, Montrose, Colorado, United States
Observer: Betty Fenton

Trumpeter Swan Cygnus buccinator

Number observed: 6
UNCONFIRMED
Date: Jan 28, 2023 09:47
Location: 1609–1615 8 Rd, Mack US-CO 39.24321, -108.90175, Mesa, Colorado, United States
Observer: douglas diekman

Trumpeter Swan Cygnus buccinator

Number observed: 7
UNCONFIRMED
Date: Jan 29, 2023 10:00
Location: 8 Road and environs, Mesa, Colorado, United States
Observer: Denise & Mark Vollmar

Trumpeter Swan Cygnus buccinator

Number observed: 1
UNCONFIRMED
Date: Jan 29, 2023 14:56
Location: Brainard Drive Pond, Broomfield, Colorado, United States
Observer: Matt Hofeditz

Trumpeter Swan Cygnus buccinator

Number observed: 1
UNCONFIRMED
Date: Jan 29, 2023 11:41
Location: Brainard Drive Pond, Broomfield, Colorado, United States
Observer: Diane Roberts

Trumpeter Swan Cygnus buccinator

Number observed: 1
UNCONFIRMED
Date: Jan 29, 2023 10:38
Location: Brainard Drive Pond, Broomfield, Colorado, United States
Observer: Doug Shoffner

Trumpeter Swan Cygnus buccinator

Number observed: 1
UNCONFIRMED
Date: Jan 29, 2023 07:48
Location: Brainard Drive Pond, Broomfield, Colorado, United States
Observer: David Ely

Trumpeter Swan Cygnus buccinator

Number observed: 1
UNCONFIRMED
Date: Jan 29, 2023 07:48
Location: Brainard Drive Pond, Broomfield, Colorado, United States
Observer: Jason Cole

Trumpeter Swan Cygnus buccinator

Number observed: 1
UNCONFIRMED
Date: Jan 28, 2023 16:50
Location: Brainard Drive Pond, Broomfield, Colorado, United States
Observer: Kim Kennedy White

Trumpeter Swan Cygnus buccinator

Number observed: 1
UNCONFIRMED
Date: Jan 28, 2023 15:23
Location: Brainard Drive Pond, Broomfield, Colorado, United States
Observer: Jen S

Trumpeter Swan Cygnus buccinator

Number observed: 1
UNCONFIRMED
Date: Jan 28, 2023 14:23
Location: Brainard Drive Pond, Broomfield, Colorado, United States
Observer: Will Anderson

Trumpeter Swan Cygnus buccinator

Number observed: 1
UNCONFIRMED
Date: Jan 28, 2023 14:23
Location: Brainard Drive Pond, Broomfield, Colorado, United States
Observer: Nathan Pieplow

Trumpeter Swan Cygnus buccinator

Number observed: 1
UNCONFIRMED
Date: Jan 28, 2023 11:50
Location: Brainard Drive Pond, Broomfield, Colorado, United States
Observer: Sue Riffe

Trumpeter Swan Cygnus buccinator

Number observed: 1
UNCONFIRMED
Date: Jan 28, 2023 11:21
Location: Brainard Drive Pond, Broomfield, Colorado, United States
Observer: Erin Watson

Trumpeter Swan Cygnus buccinator

Number observed: 1
UNCONFIRMED
Date: Jan 28, 2023 10:45
Location: Brainard Drive Pond, Broomfield, Colorado, United States
Observer: Jason Cole

Trumpeter Swan Cygnus buccinator

Number observed: 1
UNCONFIRMED
Date: Jan 26, 2023 13:42
Location: Brainard Drive Pond, Broomfield, Colorado, United States
Observer: Lorraine Lanning

Trumpeter Swan Cygnus buccinator

Number observed: 1
UNCONFIRMED
Date: Jan 26, 2023 13:20
Location: Brainard Drive Pond, Broomfield, Colorado, United States
Observer: Betty Glass

Trumpeter Swan Cygnus buccinator

Number observed: 1
UNCONFIRMED
Date: Jan 26, 2023 13:08
Location: Brainard Drive Pond, Broomfield, Colorado, United States
Observer: David Ely

Trumpeter Swan Cygnus buccinator

Number observed: 1
UNCONFIRMED
Date: Jan 24, 2023 15:30
Location: Brainard Drive Pond, Broomfield, Colorado, United States
Observer: Tim Smart

Trumpeter Swan Cygnus buccinator

Number observed: 1
UNCONFIRMED
Date: Jan 24, 2023 13:15
Location: Brainard Drive Pond, Broomfield, Colorado, United States
Observer: Susan Rosine

Trumpeter Swan Cygnus buccinator

Number observed: 1
CONFIRMED
Date: Jan 24, 2023 12:05
Location: Brainard Drive Pond, Broomfield, Colorado, United States
Observer: Lorraine Lanning

Trumpeter Swan Cygnus buccinator

Number observed: 6
UNCONFIRMED
Date: Jan 28, 2023 10:41
Location: Highline Lake SP, Mesa, Colorado, United States
Observer: Christine Alexander

Trumpeter Swan Cygnus buccinator

Number observed: 6
UNCONFIRMED
Date: Jan 28, 2023 08:53
Location: Highline Lake SP, Mesa, Colorado, United States
Observer: David Price

Trumpeter Swan Cygnus buccinator

Number observed: 6
UNCONFIRMED
Date: Jan 28, 2023 08:53
Location: Highline Lake SP, Mesa, Colorado, United States
Observer: douglas diekman

Trumpeter Swan Cygnus buccinator

Number observed: 6
UNCONFIRMED
Date: Jan 27, 2023 09:25
Location: Highline Lake SP, Mesa, Colorado, United States
Observer: Rodene Harwood

Trumpeter Swan Cygnus buccinator

Number observed: 6
UNCONFIRMED
Date: Jan 27, 2023 09:25
Location: Highline Lake SP, Mesa, Colorado, United States
Observer: Sue Shepard

Trumpeter Swan Cygnus buccinator

Number observed: 6
UNCONFIRMED
Date: Jan 27, 2023 09:25
Location: Highline Lake SP, Mesa, Colorado, United States
Observer: Ronda Woodward

Trumpeter Swan Cygnus buccinator

Number observed: 6
UNCONFIRMED
Date: Jan 26, 2023 09:30
Location: Highline Lake SP, Mesa, Colorado, United States
Observer: Carol Ortenzio

Trumpeter Swan Cygnus buccinator

Number observed: 6
UNCONFIRMED
Date: Jan 24, 2023 16:06
Location: Highline Lake SP, Mesa, Colorado, United States
Observer: douglas diekman

Trumpeter Swan Cygnus buccinator

Number observed: 6
CONFIRMED
Date: Jan 24, 2023 15:10
Location: Highline Lake SP, Mesa, Colorado, United States
Observer: Christine Alexander

Trumpeter Swan Cygnus buccinator

Number observed: 6
UNCONFIRMED
Date: Jan 24, 2023 10:08
Location: Highline Lake SP, Mesa, Colorado, United States
Observer: David Price

Trumpeter Swan Cygnus buccinator

Number observed: 6
UNCONFIRMED
Date: Jan 24, 2023 10:08
Location: Highline Lake SP, Mesa, Colorado, United States
Observer: Mike Henwood

Trumpeter Swan Cygnus buccinator

Number observed: 6
UNCONFIRMED
Date: Jan 24, 2023 10:08
Location: Highline Lake SP, Mesa, Colorado, United States
Observer: Kathleen McGinley

Trumpeter Swan Cygnus buccinator

Number observed: 6
UNCONFIRMED
Date: Jan 26, 2023 10:10
Location: Mesa Co. 23 and K Rds., Mesa, Colorado, United States
Observer: eileen cunningham

Trumpeter Swan Cygnus buccinator

Number observed: 6
UNCONFIRMED
Date: Jan 28, 2023 11:51
Location: RST Road Area, Mesa, Colorado, United States
Observer: Vic Zerbi

Trumpeter Swan Cygnus buccinator

Number observed: 6
UNCONFIRMED
Date: Jan 28, 2023 11:51
Location: RST Road Area, Mesa, Colorado, United States
Observer: Linda Chittum

Trumpeter Swan Cygnus buccinator

Number observed: 6
UNCONFIRMED
Date: Jan 28, 2023 11:51
Location: RST Road Area, Mesa, Colorado, United States
Observer: Ada Jones

Trumpeter Swan Cygnus buccinator

Number observed: 6
UNCONFIRMED
Date: Jan 27, 2023 10:33
Location: RST area, Mesa, Colorado, United States
Observer: Rodene Harwood

Trumpeter Swan Cygnus buccinator

Number observed: 6
UNCONFIRMED
Date: Jan 27, 2023 10:33
Location: RST area, Mesa, Colorado, United States
Observer: Sue Shepard

Trumpeter Swan Cygnus buccinator

Number observed: 6
UNCONFIRMED
Date: Jan 27, 2023 10:33
Location: RST area, Mesa, Colorado, United States
Observer: Ronda Woodward

Trumpeter Swan Cygnus buccinator

Number observed: 6
UNCONFIRMED
Date: Jan 27, 2023 15:03
Location: S Road, 8 to 6 Roads, Mack, Colorado, US (39.282, -108.919), Mesa, Colorado, United States
Observer: Lori Shuler

Trumpeter Swan Cygnus buccinator

Number observed: 6
UNCONFIRMED
Date: Jan 29, 2023 09:25
Location: S Road, Mack, Colorado, Mesa, Colorado, United States
Observer: Lori Shuler

Tundra Swan Cygnus columbianus

Number observed: 3
UNCONFIRMED
Date: Jan 28, 2023 09:47
Location: 1609–1615 8 Rd, Mack US-CO 39.24321, -108.90175, Mesa, Colorado, United States
Observer: douglas diekman

Tundra Swan Cygnus columbianus

Number observed: 2
UNCONFIRMED
Date: Jan 29, 2023 10:00
Location: 8 Road and environs, Mesa, Colorado, United States
Observer: Denise & Mark Vollmar

Tundra Swan Cygnus columbianus

Number observed: 1
UNCONFIRMED
Date: Jan 29, 2023 14:56
Location: Brainard Drive Pond, Broomfield, Colorado, United States
Observer: Matt Hofeditz

Tundra Swan Cygnus columbianus

Number observed: 1
UNCONFIRMED
Date: Jan 29, 2023 11:41
Location: Brainard Drive Pond, Broomfield, Colorado, United States
Observer: Diane Roberts

Tundra Swan Cygnus columbianus

Number observed: 1
UNCONFIRMED
Date: Jan 29, 2023 10:38
Location: Brainard Drive Pond, Broomfield, Colorado, United States
Observer: Doug Shoffner

Tundra Swan Cygnus columbianus

Number observed: 1
UNCONFIRMED
Date: Jan 29, 2023 07:48
Location: Brainard Drive Pond, Broomfield, Colorado, United States
Observer: Jason Cole

Tundra Swan Cygnus columbianus

Number observed: 1
UNCONFIRMED
Date: Jan 29, 2023 07:48
Location: Brainard Drive Pond, Broomfield, Colorado, United States
Observer: David Ely

Tundra Swan Cygnus columbianus

Number observed: 1
UNCONFIRMED
Date: Jan 28, 2023 16:50
Location: Brainard Drive Pond, Broomfield, Colorado, United States
Observer: Kim Kennedy White

Tundra Swan Cygnus columbianus

Number observed: 1
UNCONFIRMED
Date: Jan 28, 2023 15:23
Location: Brainard Drive Pond, Broomfield, Colorado, United States
Observer: Jen S

Tundra Swan Cygnus columbianus

Number observed: 1
UNCONFIRMED
Date: Jan 28, 2023 11:50
Location: Brainard Drive Pond, Broomfield, Colorado, United States
Observer: Sue Riffe

Tundra Swan Cygnus columbianus

Number observed: 1
UNCONFIRMED
Date: Jan 28, 2023 11:21
Location: Brainard Drive Pond, Broomfield, Colorado, United States
Observer: Erin Watson

Tundra Swan Cygnus columbianus

Number observed: 1
UNCONFIRMED
Date: Jan 28, 2023 10:45
Location: Brainard Drive Pond, Broomfield, Colorado, United States
Observer: Jason Cole

Tundra Swan Cygnus columbianus

Number observed: 1
UNCONFIRMED
Date: Jan 26, 2023 13:42
Location: Brainard Drive Pond, Broomfield, Colorado, United States
Observer: Lorraine Lanning

Tundra Swan Cygnus columbianus

Number observed: 1
UNCONFIRMED
Date: Jan 26, 2023 13:20
Location: Brainard Drive Pond, Broomfield, Colorado, United States
Observer: Betty Glass

Tundra Swan Cygnus columbianus

Number observed: 1
UNCONFIRMED
Date: Jan 26, 2023 13:08
Location: Brainard Drive Pond, Broomfield, Colorado, United States
Observer: David Ely

Tundra Swan Cygnus columbianus

Number observed: 1
UNCONFIRMED
Date: Jan 24, 2023 15:30
Location: Brainard Drive Pond, Broomfield, Colorado, United States
Observer: Tim Smart

Tundra Swan Cygnus columbianus

Number observed: 1
UNCONFIRMED
Date: Jan 24, 2023 13:15
Location: Brainard Drive Pond, Broomfield, Colorado, United States
Observer: Susan Rosine

Tundra Swan Cygnus columbianus

Number observed: 1
CONFIRMED
Date: Jan 30, 2023 15:09
Location: Denny Lake Park, Montezuma, Colorado, United States
Observer: Coen Dexter

Tundra Swan Cygnus columbianus

Number observed: 1
CONFIRMED
Date: Jan 28, 2023 10:07
Location: Denny Lake Park, Montezuma, Colorado, United States
Observer: Brenda Wright

Tundra Swan Cygnus columbianus

Number observed: 1
CONFIRMED
Date: Jan 28, 2023 10:07
Location: Denny Lake Park, Montezuma, Colorado, United States
Observer: Andrea Avantaggio

Tundra Swan Cygnus columbianus

Number observed: 1
CONFIRMED
Date: Jan 28, 2023 10:07
Location: Denny Lake Park, Montezuma, Colorado, United States
Observer: Coen Dexter

Tundra Swan Cygnus columbianus

Number observed: 1
CONFIRMED
Date: Jan 28, 2023 10:06
Location: Denny Lake Park, Montezuma, Colorado, United States
Observer: Brian Devine

Tundra Swan Cygnus columbianus

Number observed: 1
CONFIRMED
Date: Jan 28, 2023 10:06
Location: Denny Lake Park, Montezuma, Colorado, United States
Observer: Melissa May

Tundra Swan Cygnus columbianus

Number observed: 1
CONFIRMED
Date: Jan 28, 2023 10:06
Location: Denny Lake Park, Montezuma, Colorado, United States
Observer: Ryan Votta

Tundra Swan Cygnus columbianus

Number observed: 1
CONFIRMED
Date: Jan 25, 2023 15:53
Location: Denny Lake Park, Montezuma, Colorado, United States
Observer: Coen Dexter

Tundra Swan Cygnus columbianus

Number observed: 1
CONFIRMED
Date: Jan 25, 2023 15:53
Location: Denny Lake Park, Montezuma, Colorado, United States
Observer: Brenda Wright

Tundra Swan Cygnus columbianus

Number observed: 1
CONFIRMED
Date: Jan 24, 2023 10:35
Location: Denny Lake Park, Montezuma, Colorado, United States
Observer: Cara Jo Rieb

Tundra Swan Cygnus columbianus

Number observed: 3
UNCONFIRMED
Date: Jan 28, 2023 10:41
Location: Highline Lake SP, Mesa, Colorado, United States
Observer: Christine Alexander

Tundra Swan Cygnus columbianus

Number observed: 3
UNCONFIRMED
Date: Jan 28, 2023 08:53
Location: Highline Lake SP, Mesa, Colorado, United States
Observer: David Price

Tundra Swan Cygnus columbianus

Number observed: 3
UNCONFIRMED
Date: Jan 28, 2023 08:53
Location: Highline Lake SP, Mesa, Colorado, United States
Observer: douglas diekman

Tundra Swan Cygnus columbianus

Number observed: 3
UNCONFIRMED
Date: Jan 27, 2023 09:25
Location: Highline Lake SP, Mesa, Colorado, United States
Observer: Ronda Woodward

Tundra Swan Cygnus columbianus

Number observed: 3
UNCONFIRMED
Date: Jan 27, 2023 09:25
Location: Highline Lake SP, Mesa, Colorado, United States
Observer: Rodene Harwood

Tundra Swan Cygnus columbianus

Number observed: 3
UNCONFIRMED
Date: Jan 27, 2023 09:25
Location: Highline Lake SP, Mesa, Colorado, United States
Observer: Sue Shepard

Tundra Swan Cygnus columbianus

Number observed: 3
UNCONFIRMED
Date: Jan 26, 2023 09:30
Location: Highline Lake SP, Mesa, Colorado, United States
Observer: Carol Ortenzio

Tundra Swan Cygnus columbianus

Number observed: 3
UNCONFIRMED
Date: Jan 24, 2023 16:06
Location: Highline Lake SP, Mesa, Colorado, United States
Observer: douglas diekman

Tundra Swan Cygnus columbianus

Number observed: 3
CONFIRMED
Date: Jan 24, 2023 15:10
Location: Highline Lake SP, Mesa, Colorado, United States
Observer: Christine Alexander

Tundra Swan Cygnus columbianus

Number observed: 3
CONFIRMED
Date: Jan 24, 2023 10:08
Location: Highline Lake SP, Mesa, Colorado, United States
Observer: David Price

Tundra Swan Cygnus columbianus

Number observed: 3
CONFIRMED
Date: Jan 24, 2023 10:08
Location: Highline Lake SP, Mesa, Colorado, United States
Observer: Kathleen McGinley

Tundra Swan Cygnus columbianus

Number observed: 3
CONFIRMED
Date: Jan 24, 2023 10:08
Location: Highline Lake SP, Mesa, Colorado, United States
Observer: Mike Henwood

Tundra Swan Cygnus columbianus

Number observed: 3
UNCONFIRMED
Date: Jan 26, 2023 10:10
Location: Mesa Co. 23 and K Rds., Mesa, Colorado, United States
Observer: eileen cunningham

Tundra Swan Cygnus columbianus

Number observed: 3
UNCONFIRMED
Date: Jan 28, 2023 10:30
Location: R and S Rd from 6 to 8 Rd, Mack US-CO (39.2768,-108.9151), Mesa, Colorado, United States
Observer: Bill Schneider

Tundra Swan Cygnus columbianus

Number observed: 3
UNCONFIRMED
Date: Jan 28, 2023 11:51
Location: RST Road Area, Mesa, Colorado, United States
Observer: Vic Zerbi

Tundra Swan Cygnus columbianus

Number observed: 3
UNCONFIRMED
Date: Jan 28, 2023 11:51
Location: RST Road Area, Mesa, Colorado, United States
Observer: Linda Chittum

Tundra Swan Cygnus columbianus

Number observed: 3
UNCONFIRMED
Date: Jan 28, 2023 11:51
Location: RST Road Area, Mesa, Colorado, United States
Observer: Ada Jones

Tundra Swan Cygnus columbianus

Number observed: 3
UNCONFIRMED
Date: Jan 27, 2023 10:33
Location: RST area, Mesa, Colorado, United States
Observer: Sue Shepard

Tundra Swan Cygnus columbianus

Number observed: 3
UNCONFIRMED
Date: Jan 27, 2023 10:33
Location: RST area, Mesa, Colorado, United States
Observer: Ronda Woodward

Tundra Swan Cygnus columbianus

Number observed: 3
UNCONFIRMED
Date: Jan 27, 2023 10:33
Location: RST area, Mesa, Colorado, United States
Observer: Rodene Harwood

Tundra Swan Cygnus columbianus

Number observed: 3
UNCONFIRMED
Date: Jan 27, 2023 15:03
Location: S Road, 8 to 6 Roads, Mack, Colorado, US (39.282, -108.919), Mesa, Colorado, United States
Observer: Lori Shuler

Tundra Swan Cygnus columbianus

Number observed: 3
UNCONFIRMED
Date: Jan 29, 2023 09:25
Location: S Road, Mack, Colorado, Mesa, Colorado, United States
Observer: Lori Shuler

Cinnamon Teal Spatula cyanoptera

Number observed: 1
UNCONFIRMED
Date: Jan 27, 2023 12:42
Location: Lake Pueblo SP--South Marina area, Pueblo, Colorado, United States
Observer: Chris Knight

Northern Pintail Anas acuta

Number observed: 1
CONFIRMED
Date: Jan 28, 2023 14:23
Location: Brainard Drive Pond, Broomfield, Colorado, United States
Observer: Will Anderson

Northern Pintail Anas acuta

Number observed: 1
CONFIRMED
Date: Jan 28, 2023 14:23
Location: Brainard Drive Pond, Broomfield, Colorado, United States
Observer: Nathan Pieplow

Lesser Scaup Aythya affinis

Number observed: 2
UNCONFIRMED
Date: Jan 29, 2023 15:01
Location: East Brush Creek Nature Trail and Ponds, Pitkin, Colorado, United States
Observer: Bryan Gieszl

Lesser Scaup Aythya affinis

Number observed: 2
CONFIRMED
Date: Jan 24, 2023 07:49
Location: East Brush Creek Nature Trail and Ponds, Pitkin, Colorado, United States
Observer: Bryan Gieszl

Lesser Scaup Aythya affinis

Number observed: 6
CONFIRMED
Date: Jan 24, 2023 10:39
Location: Grand Lake complex--channel, Grand, Colorado, United States
Observer: Daniel Patrick

Red-breasted Merganser Mergus serrator

Number observed: 6
UNCONFIRMED
Date: Jan 27, 2023 10:38
Location: Brush Hollow Reservoir, Fremont, Colorado, United States
Observer: Diane Roberts

Red-breasted Merganser Mergus serrator

Number observed: 6
UNCONFIRMED
Date: Jan 27, 2023 10:38
Location: Brush Hollow Reservoir, Fremont, Colorado, United States
Observer: Jill Boice

Horned Grebe Podiceps auritus

Number observed: 2
CONFIRMED
Date: Jan 27, 2023 15:13
Location: Welton Reservoir, Jefferson, Colorado, United States
Observer: Lorraine Lanning

Horned Grebe Podiceps auritus

Number observed: 2
UNCONFIRMED
Date: Jan 26, 2023 15:42
Location: Welton Reservoir, Jefferson, Colorado, United States
Observer: Curtis Higgins

Horned Grebe Podiceps auritus

Number observed: 2
UNCONFIRMED
Date: Jan 26, 2023 15:42
Location: Welton Reservoir, Jefferson, Colorado, United States
Observer: Timo Mitzen

Horned Grebe Podiceps auritus

Number observed: 2
UNCONFIRMED
Date: Jan 26, 2023 15:42
Location: Welton Reservoir, Jefferson, Colorado, United States
Observer: Robert Raker

White-winged Dove Zenaida asiatica

Number observed: 1
CONFIRMED
Date: Jan 24, 2023 16:45
Location: 745 Glencoe St, Denver US-CO (39.7281,-104.9257), Denver, Colorado, United States
Observer: Julia Auckland

Sora Porzana carolina

Number observed: 1
CONFIRMED
Date: Jan 24, 2023 11:44
Location: Clear Creek Trail--Golden to I-70, Jefferson, Colorado, United States
Observer: Robert Raker

Killdeer Charadrius vociferus

Number observed: 1
UNCONFIRMED
Date: Jan 29, 2023 07:48
Location: Brainard Drive Pond, Broomfield, Colorado, United States
Observer: Jason Cole

Killdeer Charadrius vociferus

Number observed: 1
UNCONFIRMED
Date: Jan 29, 2023 07:48
Location: Brainard Drive Pond, Broomfield, Colorado, United States
Observer: David Ely

Killdeer Charadrius vociferus

Number observed: 1
CONFIRMED
Date: Jan 28, 2023 14:23
Location: Brainard Drive Pond, Broomfield, Colorado, United States
Observer: Nathan Pieplow

Killdeer Charadrius vociferus

Number observed: 1
CONFIRMED
Date: Jan 28, 2023 14:23
Location: Brainard Drive Pond, Broomfield, Colorado, United States
Observer: Will Anderson

Killdeer Charadrius vociferus

Number observed: 2
UNCONFIRMED
Date: Jan 26, 2023 17:02
Location: Shriver-Wright SWA, Rio Grande, Colorado, United States
Observer: Kenny Stephenson

Spotted Sandpiper Actitis macularius

Number observed: 1
UNCONFIRMED
Date: Jan 26, 2023 15:56
Location: Devereux Road and Two Rivers Park, Garfield, Colorado, United States
Observer: JoAnn Potter Riggle 🦤

Franklin's Gull Leucophaeus pipixcan

Number observed: 1
CONFIRMED
Date: Jan 27, 2023 14:39
Location: Horsetooth Reservoir, Larimer, Colorado, United States
Observer: Nick Komar

Short-billed Gull Larus brachyrhynchus

Number observed: 1
UNCONFIRMED
Date: Jan 28, 2023 10:45
Location: Runyon/Fountain Lakes SWA, Pueblo, Colorado, United States
Observer: Budget Big Year 2023

Short-billed Gull Larus brachyrhynchus

Number observed: 1
UNCONFIRMED
Date: Jan 28, 2023 10:45
Location: Runyon/Fountain Lakes SWA, Pueblo, Colorado, United States
Observer: Evan Carlson

Short-billed Gull Larus brachyrhynchus

Number observed: 1
UNCONFIRMED
Date: Jan 27, 2023 10:30
Location: Runyon/Fountain Lakes SWA, Pueblo, Colorado, United States
Observer: Chris Knight

Short-billed Gull Larus brachyrhynchus

Number observed: 1
UNCONFIRMED
Date: Jan 27, 2023 10:30
Location: Runyon/Fountain Lakes SWA, Pueblo, Colorado, United States
Observer: Al Garner

Western Gull Larus occidentalis

Number observed: 1
UNCONFIRMED
Date: Jan 24, 2023 14:50
Location: Big Johnson Reservoir & Bluestem Prairie Open Space, El Paso, Colorado, United States
Observer: Risë Foster-Bruder

California Gull Larus californicus

Number observed: 1
UNCONFIRMED
Date: Jan 27, 2023 15:16
Location: Big Johnson Reservoir & Bluestem Prairie Open Space, El Paso, Colorado, United States
Observer: Luke Pheneger

California Gull Larus californicus

Number observed: 1
UNCONFIRMED
Date: Jan 27, 2023 15:16
Location: Big Johnson Reservoir & Bluestem Prairie Open Space, El Paso, Colorado, United States
Observer: Cole Sage

Glaucous-winged Gull Larus glaucescens

Number observed: 1
UNCONFIRMED
Date: Jan 25, 2023 14:45
Location: Big Johnson Reservoir & Bluestem Prairie Open Space, El Paso, Colorado, United States
Observer: Kara Laszczyk

Glaucous-winged Gull Larus glaucescens

Number observed: 1
UNCONFIRMED
Date: Jan 24, 2023 14:50
Location: Big Johnson Reservoir & Bluestem Prairie Open Space, El Paso, Colorado, United States
Observer: Risë Foster-Bruder

Glaucous-winged Gull Larus glaucescens

Number observed: 1
UNCONFIRMED
Date: Jan 27, 2023 14:18
Location: Lake Pueblo SP--N-1 Road, Pueblo, Colorado, United States
Observer: Chris Knight

Glaucous-winged Gull Larus glaucescens

Number observed: 1
CONFIRMED
Date: Jan 26, 2023 14:23
Location: Lake Pueblo SP--South Marina area, Pueblo, Colorado, United States
Observer: Brandon Lentz

Glaucous-winged Gull Larus glaucescens

Number observed: 1
UNCONFIRMED
Date: Jan 28, 2023 09:51
Location: Pueblo Reservoir, Pueblo, Colorado, United States
Observer: Hannah Criswell

Glaucous-winged Gull Larus glaucescens

Number observed: 1
UNCONFIRMED
Date: Jan 28, 2023 09:51
Location: Pueblo Reservoir, Pueblo, Colorado, United States
Observer: Brian Genge

Herring x Glaucous-winged Gull (hybrid) Larus argentatus x glaucescens

Number observed: 1
UNCONFIRMED
Date: Jan 28, 2023 09:51
Location: Pueblo Reservoir, Pueblo, Colorado, United States
Observer: Hannah Criswell

Herring x Glaucous-winged Gull (hybrid) Larus argentatus x glaucescens

Number observed: 1
UNCONFIRMED
Date: Jan 28, 2023 09:51
Location: Pueblo Reservoir, Pueblo, Colorado, United States
Observer: Brian Genge

Great Black-backed Gull Larus marinus

Number observed: 1
UNCONFIRMED
Date: Jan 25, 2023 11:08
Location: Lake Pueblo SP--South Marina area, Pueblo, Colorado, United States
Observer: Brandon Lentz

Great Black-backed Gull Larus marinus

Number observed: 1
UNCONFIRMED
Date: Jan 28, 2023 09:51
Location: Pueblo Reservoir, Pueblo, Colorado, United States
Observer: Brian Genge

Great Black-backed Gull Larus marinus

Number observed: 1
UNCONFIRMED
Date: Jan 28, 2023 09:51
Location: Pueblo Reservoir, Pueblo, Colorado, United States
Observer: Hannah Criswell

Double-crested Cormorant Nannopterum auritum

Number observed: 1
CONFIRMED
Date: Jan 28, 2023 08:27
Location: Chatfield SP--Below Dam, Douglas, Colorado, United States
Observer: Paul Schreck

Double-crested Cormorant Nannopterum auritum

Number observed: 1
CONFIRMED
Date: Jan 28, 2023 08:27
Location: Chatfield SP--Below Dam, Douglas, Colorado, United States
Observer: Robert Raker

Double-crested Cormorant Nannopterum auritum

Number observed: 1
CONFIRMED
Date: Jan 28, 2023 08:27
Location: Chatfield SP--Below Dam, Douglas, Colorado, United States
Observer: Anonymous eBirder

Double-crested Cormorant Nannopterum auritum

Number observed: 1
CONFIRMED
Date: Jan 28, 2023 08:27
Location: Chatfield SP--Below Dam, Douglas, Colorado, United States
Observer: Jill Holden

Double-crested Cormorant Nannopterum auritum

Number observed: 1
CONFIRMED
Date: Jan 28, 2023 08:27
Location: Chatfield SP--Below Dam, Douglas, Colorado, United States
Observer: Joey Kellner

Double-crested Cormorant Nannopterum auritum

Number observed: 1
CONFIRMED
Date: Jan 28, 2023 08:27
Location: Chatfield SP--Below Dam, Douglas, Colorado, United States
Observer: Susan Barrett

Double-crested Cormorant Nannopterum auritum

Number observed: 1
CONFIRMED
Date: Jan 28, 2023 08:27
Location: Chatfield SP--Below Dam, Douglas, Colorado, United States
Observer: Bill Schreitz

Double-crested Cormorant Nannopterum auritum

Number observed: 1
CONFIRMED
Date: Jan 28, 2023 08:27
Location: Chatfield SP--Below Dam, Douglas, Colorado, United States
Observer: Renee Casias

Double-crested Cormorant Nannopterum auritum

Number observed: 1
CONFIRMED
Date: Jan 28, 2023 08:27
Location: Chatfield SP--Below Dam, Douglas, Colorado, United States
Observer: Curtis Higgins

Double-crested Cormorant Nannopterum auritum

Number observed: 3
UNCONFIRMED
Date: Jan 26, 2023 07:15
Location: Matthew T. Glasser Reservoir, Broomfield, Colorado, United States
Observer: Jason Cole

Northern Goshawk Accipiter gentilis

Number observed: 1
CONFIRMED
Date: Jan 25, 2023 08:00
Location: 80116 - WLD, Douglas, Colorado, United States
Observer: Hugh Kingery

Northern Goshawk (American) Accipiter gentilis atricapillus/laingi

Number observed: 1
UNCONFIRMED
Date: Jan 25, 2023 07:00
Location: Rabbit Mountain Road, Broomfield, Colorado, United States
Observer: Brenda Parolini

Northern Goshawk (American) Accipiter gentilis atricapillus/laingi

Number observed: 1
UNCONFIRMED
Date: Jan 29, 2023 08:10
Location: WAVANDER330, Douglas, Colorado, United States
Observer: William Vanderpoel

Short-eared Owl Asio flammeus

Number observed: 2
CONFIRMED
Date: Jan 26, 2023 17:39
Location: Mile 6 area, Adams, Colorado, United States
Observer: archer silverman

Short-eared Owl Asio flammeus

Number observed: 1
CONFIRMED
Date: Jan 29, 2023 12:28
Location: Rocky Mountain Arsenal NWR, Adams, Colorado, United States
Observer: Frank Farrell

Short-eared Owl Asio flammeus

Number observed: 1
CONFIRMED
Date: Jan 26, 2023 16:15
Location: Rocky Mountain Arsenal NWR, Adams, Colorado, United States
Observer: Cole Diem

Short-eared Owl Asio flammeus

Number observed: 1
CONFIRMED
Date: Jan 26, 2023 15:20
Location: Rocky Mountain Arsenal NWR, Adams, Colorado, United States
Observer: Michael Millner

Short-eared Owl Asio flammeus

Number observed: 1
CONFIRMED
Date: Jan 26, 2023 15:20
Location: Rocky Mountain Arsenal NWR, Adams, Colorado, United States
Observer: Dave Prentice

Short-eared Owl Asio flammeus

Number observed: 1
CONFIRMED
Date: Jan 26, 2023 13:30
Location: Rocky Mountain Arsenal NWR, Adams, Colorado, United States
Observer: Thomas Schlosser