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Boulder County Rare Bird Alert

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

Observations for last 7 days

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Snow Goose Anser caerulescens

Number observed: 1
CONFIRMED
Date: Apr 18, 2024 08:43
Location: Sombrero Marsh & Pond, Boulder, Colorado, United States
Observer: Valentina Roumi

Greater White-fronted Goose Anser albifrons

Number observed: 1
UNCONFIRMED
Date: Apr 21, 2024 17:31
Location: Pella Crossing Open Space, Boulder, Colorado, United States
Observer: Angela Boyd

Greater White-fronted Goose Anser albifrons

Number observed: 1
UNCONFIRMED
Date: Apr 21, 2024 17:31
Location: Pella Crossing Open Space, Boulder, Colorado, United States
Observer: Kirk Diedrichs

Cackling Goose Branta hutchinsii

Number observed: 7
UNCONFIRMED
Date: Apr 18, 2024 07:23
Location: Loomiller Park, Boulder, Colorado, United States
Observer: Bryan Guarente

Stilt Sandpiper Calidris himantopus

Number observed: 1
UNCONFIRMED
Date: Apr 21, 2024 18:38
Location: St. Vrain Greenway & S Martin, Boulder, Colorado, United States
Observer: Anonymous eBirder

Herring Gull Larus argentatus

Number observed:
UNCONFIRMED
Date: Apr 21, 2024 08:00
Location: Lagerman Agricultural Preserve--Lagerman Reservoir, Boulder, Colorado, United States
Observer: Lindsey Wohlman

Forster's Tern Sterna forsteri

Number observed: 1
CONFIRMED
Date: Apr 23, 2024 17:56
Location: Walden Ponds Wildlife Habitat--Walden & Sawhill Ponds all together, Boulder, Colorado, United States
Observer: Harold Eyster

Forster's Tern Sterna forsteri

Number observed: 1
CONFIRMED
Date: Apr 23, 2024 17:55
Location: Walden Ponds Wildlife Habitat--Walden & Sawhill Ponds all together, Boulder, Colorado, United States
Observer: Susan Ringoen

Glossy Ibis Plegadis falcinellus

Number observed: 2
UNCONFIRMED
Date: Apr 18, 2024 15:30
Location: 389 Disc Dr, Boulder, Colorado, United States
Observer: Chris Petrizzo

Glossy Ibis Plegadis falcinellus

Number observed: 1
UNCONFIRMED
Date: Apr 19, 2024 08:50
Location: 389 Disc Dr, Longmont US-CO, Boulder, Colorado, United States
Observer: Jeremy Alcorn

Glossy Ibis Plegadis falcinellus

Number observed: 5
UNCONFIRMED
Date: Apr 18, 2024 13:45
Location: 389 Disc Dr, Longmont US-CO (40.1528,, Boulder, Colorado, United States
Observer: Carolyn Lueck

Glossy Ibis Plegadis falcinellus

Number observed: 2
UNCONFIRMED
Date: Apr 18, 2024 11:57
Location: 389 Disc Dr, Longmont US-CO (40.1532,-105.1719), Boulder, Colorado, United States
Observer: Sandra Hardy Reigel

Glossy Ibis Plegadis falcinellus

Number observed: 2
UNCONFIRMED
Date: Apr 18, 2024 11:29
Location: 389 Disc Dr, Longmont US-CO (40.1532,-105.1723), Boulder, Colorado, Boulder, Colorado, United States
Observer: Susan Rosine

Glossy Ibis Plegadis falcinellus

Number observed: 2
UNCONFIRMED
Date: Apr 18, 2024 14:38
Location: 389 Disc Dr, Longmont US-CO 40.15272, -105.17265, Boulder, Colorado, United States
Observer: Barbara Richardson

Glossy Ibis Plegadis falcinellus

Number observed: 7
UNCONFIRMED
Date: Apr 17, 2024 18:47
Location: 389 Disc Dr, Longmont US-CO 40.15314, -105.17219, Boulder, Colorado, United States
Observer: Ryan Borgmann

Glossy Ibis Plegadis falcinellus

Number observed: 11
UNCONFIRMED
Date: Apr 18, 2024 07:55
Location: 389 Disc Dr, Longmont US-CO 40.15331, -105.17182, Boulder, Colorado, United States
Observer: Emily Braker

Glossy Ibis Plegadis falcinellus

Number observed: 12
UNCONFIRMED
Date: Apr 18, 2024 12:18
Location: 389 Disc Dr, Longmont US-CO 40.15335, -105.17189, Boulder, Colorado, United States
Observer: kelly prendergast

Glossy Ibis Plegadis falcinellus

Number observed: 3
UNCONFIRMED
Date: Apr 18, 2024 12:53
Location: 389 Disc Dr, Longmont US-CO 40.15346, -105.17159, Boulder, Colorado, United States
Observer: Eve Lempriere

Glossy Ibis Plegadis falcinellus

Number observed: 4
UNCONFIRMED
Date: Apr 19, 2024 09:16
Location: 550 Disc Dr, Longmont US-CO 40.15316, -105.17089, Boulder, Colorado, United States
Observer: Ashley Pichon

Glossy Ibis Plegadis falcinellus

Number observed: 4
UNCONFIRMED
Date: Apr 18, 2024 08:06
Location: 550 Disc Dr, Longmont US-CO 40.15316, -105.17089, Boulder, Colorado, United States
Observer: Ashley Pichon

Glossy Ibis Plegadis falcinellus

Number observed: 1
UNCONFIRMED
Date: Apr 18, 2024 14:12
Location: Flooded marsh at corner of Nelson Rd and Disc Dr, Boulder, Colorado, United States
Observer: Archer Silverman

Glossy Ibis Plegadis falcinellus

Number observed: 1
UNCONFIRMED
Date: Apr 18, 2024 13:10
Location: Location 550 Disc Drive, Longmont, Colorado, US (40.153, -105.17, Boulder, Colorado, United States
Observer: David Smith

Glossy Ibis Plegadis falcinellus

Number observed: 1
UNCONFIRMED
Date: Apr 20, 2024 09:45
Location: Seagate, Boulder, Colorado, United States
Observer: Rob Cassady

Glossy Ibis Plegadis falcinellus

Number observed: 5
UNCONFIRMED
Date: Apr 18, 2024 13:36
Location: Seagate On Disc Drive, Boulder, Colorado, United States
Observer: Laura Sheets

Glossy Ibis Plegadis falcinellus

Number observed: 1
UNCONFIRMED
Date: Apr 23, 2024 14:51
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Grant Medlin

Glossy Ibis Plegadis falcinellus

Number observed: 2
UNCONFIRMED
Date: Apr 23, 2024 14:38
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Don Gillespie

Glossy Ibis Plegadis falcinellus

Number observed: 2
UNCONFIRMED
Date: Apr 23, 2024 14:38
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Lisa Melli Gillespie

Glossy Ibis Plegadis falcinellus

Number observed: 2
UNCONFIRMED
Date: Apr 23, 2024 11:06
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Deb Piranian

Glossy Ibis Plegadis falcinellus

Number observed: 3
UNCONFIRMED
Date: Apr 23, 2024 07:44
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Kaleigh Keohane

Glossy Ibis Plegadis falcinellus

Number observed: 1
UNCONFIRMED
Date: Apr 22, 2024 15:17
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Philip McNichols

Glossy Ibis Plegadis falcinellus

Number observed: 1
UNCONFIRMED
Date: Apr 22, 2024 14:57
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Eva Matthews Lark

Glossy Ibis Plegadis falcinellus

Number observed: 1
UNCONFIRMED
Date: Apr 22, 2024 14:48
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Barbara Richardson

Glossy Ibis Plegadis falcinellus

Number observed: 1
UNCONFIRMED
Date: Apr 22, 2024 12:40
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Anonymous eBirder

Glossy Ibis Plegadis falcinellus

Number observed: 1
UNCONFIRMED
Date: Apr 22, 2024 10:24
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: The Bushmaster

Glossy Ibis Plegadis falcinellus

Number observed: 1
UNCONFIRMED
Date: Apr 22, 2024 09:57
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Lauren Hatch

Glossy Ibis Plegadis falcinellus

Number observed: 3
UNCONFIRMED
Date: Apr 22, 2024 08:25
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Patrick Morgan

Glossy Ibis Plegadis falcinellus

Number observed: 1
UNCONFIRMED
Date: Apr 21, 2024 17:29
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Pamela S

Glossy Ibis Plegadis falcinellus

Number observed: 1
UNCONFIRMED
Date: Apr 21, 2024 17:29
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Peter Burke

Glossy Ibis Plegadis falcinellus

Number observed: 3
UNCONFIRMED
Date: Apr 21, 2024 17:03
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: nicole castillo

Glossy Ibis Plegadis falcinellus

Number observed: 12
UNCONFIRMED
Date: Apr 21, 2024 16:44
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Angela Boyd

Glossy Ibis Plegadis falcinellus

Number observed: 12
UNCONFIRMED
Date: Apr 21, 2024 16:44
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Kirk Diedrichs

Glossy Ibis Plegadis falcinellus

Number observed: 1
UNCONFIRMED
Date: Apr 21, 2024 16:00
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Jaymie Arnold

Glossy Ibis Plegadis falcinellus

Number observed: 1
UNCONFIRMED
Date: Apr 21, 2024 14:28
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Jonathan Montgomery

Glossy Ibis Plegadis falcinellus

Number observed: 1
UNCONFIRMED
Date: Apr 21, 2024 13:22
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Tim Smart

Glossy Ibis Plegadis falcinellus

Number observed: 1
UNCONFIRMED
Date: Apr 21, 2024 13:17
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: John Salisbury

Glossy Ibis Plegadis falcinellus

Number observed: 1
UNCONFIRMED
Date: Apr 21, 2024 12:28
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Stan Huntting

Glossy Ibis Plegadis falcinellus

Number observed: 1
UNCONFIRMED
Date: Apr 21, 2024 12:11
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Jamie Simo

Glossy Ibis Plegadis falcinellus

Number observed: 1
UNCONFIRMED
Date: Apr 21, 2024 12:08
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: willem van vliet-

Glossy Ibis Plegadis falcinellus

Number observed: 3
UNCONFIRMED
Date: Apr 21, 2024 09:10
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Kieran Schnitzspahn

Glossy Ibis Plegadis falcinellus

Number observed: 1
UNCONFIRMED
Date: Apr 20, 2024 17:20
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Scott Brown

Glossy Ibis Plegadis falcinellus

Number observed: 1
UNCONFIRMED
Date: Apr 20, 2024 15:36
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Matt Ketter

Glossy Ibis Plegadis falcinellus

Number observed: 2
UNCONFIRMED
Date: Apr 20, 2024 14:36
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: David Fraide

Glossy Ibis Plegadis falcinellus

Number observed: 1
UNCONFIRMED
Date: Apr 20, 2024 14:00
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Rachael Glazner

Glossy Ibis Plegadis falcinellus

Number observed: 2
UNCONFIRMED
Date: Apr 20, 2024 13:51
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Jeff Percell

Glossy Ibis Plegadis falcinellus

Number observed: 2
UNCONFIRMED
Date: Apr 20, 2024 12:28
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Phil Thorpe

Glossy Ibis Plegadis falcinellus

Number observed: 1
UNCONFIRMED
Date: Apr 20, 2024 11:23
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Garrett Arendt

Glossy Ibis Plegadis falcinellus

Number observed: 1
UNCONFIRMED
Date: Apr 20, 2024 11:23
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Kristen Arendt

Glossy Ibis Plegadis falcinellus

Number observed: 1
UNCONFIRMED
Date: Apr 20, 2024 10:31
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Ted Floyd

Glossy Ibis Plegadis falcinellus

Number observed: 1
UNCONFIRMED
Date: Apr 20, 2024 09:30
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Linda Marie Bendorf

Glossy Ibis Plegadis falcinellus

Number observed: 1
UNCONFIRMED
Date: Apr 20, 2024 09:30
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Carl Bendorf

Glossy Ibis Plegadis falcinellus

Number observed: 1
UNCONFIRMED
Date: Apr 20, 2024 08:41
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Andrew McFadden

Glossy Ibis Plegadis falcinellus

Number observed: 1
UNCONFIRMED
Date: Apr 20, 2024 08:41
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Stephen Chang

Glossy Ibis Plegadis falcinellus

Number observed: 1
UNCONFIRMED
Date: Apr 20, 2024 01:00
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Kevin Smith

Glossy Ibis Plegadis falcinellus

Number observed: 3
UNCONFIRMED
Date: Apr 19, 2024 17:14
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Patrick Morgan

Glossy Ibis Plegadis falcinellus

Number observed: 3
UNCONFIRMED
Date: Apr 19, 2024 17:05
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Peter Williams

Glossy Ibis Plegadis falcinellus

Number observed:
UNCONFIRMED
Date: Apr 19, 2024 16:30
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Christi Yoder

Glossy Ibis Plegadis falcinellus

Number observed: 8
UNCONFIRMED
Date: Apr 19, 2024 16:11
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Kevin Liebrock

Glossy Ibis Plegadis falcinellus

Number observed: 1
UNCONFIRMED
Date: Apr 19, 2024 15:11
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Tracey Graves

Glossy Ibis Plegadis falcinellus

Number observed: 1
UNCONFIRMED
Date: Apr 19, 2024 15:11
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Ryan Dibala

Glossy Ibis Plegadis falcinellus

Number observed: 1
UNCONFIRMED
Date: Apr 19, 2024 13:46
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Karen Clark

Glossy Ibis Plegadis falcinellus

Number observed: 2
UNCONFIRMED
Date: Apr 19, 2024 13:43
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Opal Wood

Glossy Ibis Plegadis falcinellus

Number observed: 1
UNCONFIRMED
Date: Apr 19, 2024 13:05
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Peter Gent

Glossy Ibis Plegadis falcinellus

Number observed: 3
UNCONFIRMED
Date: Apr 19, 2024 11:07
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Peter Williams

Glossy Ibis Plegadis falcinellus

Number observed: 4
UNCONFIRMED
Date: Apr 19, 2024 10:02
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Julia Johnson

Glossy Ibis Plegadis falcinellus

Number observed: 1
UNCONFIRMED
Date: Apr 18, 2024 17:13
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Evan Appel

Glossy Ibis Plegadis falcinellus

Number observed: 3
UNCONFIRMED
Date: Apr 18, 2024 16:49
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Patrick Morgan

Glossy Ibis Plegadis falcinellus

Number observed: 3
UNCONFIRMED
Date: Apr 18, 2024 13:08
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Patrick Morgan

Glossy Ibis Plegadis falcinellus

Number observed: 1
UNCONFIRMED
Date: Apr 18, 2024 11:18
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Joey Kellner

Glossy Ibis Plegadis falcinellus

Number observed: 2
UNCONFIRMED
Date: Apr 18, 2024 09:48
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Don Gillespie

Glossy Ibis Plegadis falcinellus

Number observed: 3
UNCONFIRMED
Date: Apr 19, 2024 08:20
Location: Seagate Retention Pond - Disc Dr, Boulder, Colorado, United States
Observer: Joo Tan

Glossy x White-faced Ibis (hybrid) Plegadis falcinellus x chihi

Number observed: 1
UNCONFIRMED
Date: Apr 21, 2024 09:10
Location: Seagate Retention Pond, Boulder, Colorado, United States
Observer: Kieran Schnitzspahn

Western Kingbird Tyrannus verticalis

Number observed: 1
UNCONFIRMED
Date: Apr 22, 2024 09:16
Location: Hecla Lake, Boulder, Colorado, United States
Observer: Ryan Laney

Bohemian Waxwing Bombycilla garrulus

Number observed: 20
CONFIRMED
Date: Apr 21, 2024 09:17
Location: Mesa Trail Complex, Boulder, Colorado, United States
Observer: Jeffrey Price

Purple Finch Haemorhous purpureus

Number observed: 2
UNCONFIRMED
Date: Apr 21, 2024 15:44
Location: Sunbeam Gulch, Boulder, Colorado, United States
Observer: Jean Hertzberg

Brewer's Sparrow Spizella breweri

Number observed: 1
UNCONFIRMED
Date: Apr 20, 2024 15:00
Location: Lagerman Agricultural Preserve--Lagerman Reservoir, Boulder, Colorado, United States
Observer: Neil Brown

Orange-crowned Warbler Leiothlypis celata

Number observed: 1
UNCONFIRMED
Date: Apr 22, 2024 07:34
Location: Pleasant View Marsh, Boulder, Colorado, United States
Observer: Ernest Crvich

Common Yellowthroat Geothlypis trichas

Number observed: 1
UNCONFIRMED
Date: Apr 21, 2024 16:30
Location: Admiral Arleigh A. Burke Park, Boulder, Colorado, United States
Observer: Philip McNichols

Pine Warbler Setophaga pinus

Number observed: 1
UNCONFIRMED
Date: Apr 20, 2024 13:46
Location: Brandt Court, Boulder, Colorado, United States
Observer: Patrick Morgan

Wilson's Warbler Cardellina pusilla

Number observed: 1
UNCONFIRMED
Date: Apr 23, 2024 07:37
Location: Pleasant View Marsh, Boulder, Colorado, United States
Observer: Ernest Crvich

Wilson's Warbler Cardellina pusilla

Number observed: 1
UNCONFIRMED
Date: Apr 22, 2024 07:34
Location: Pleasant View Marsh, Boulder, Colorado, United States
Observer: Ernest Crvich

Western Tanager Piranga ludoviciana

Number observed: 1
CONFIRMED
Date: Apr 18, 2024 08:45
Location: 3035 Galena Way, Boulder CO, Boulder, Colorado, United States
Observer: Lori Potter

Lazuli Bunting Passerina amoena

Number observed: 1
UNCONFIRMED
Date: Apr 20, 2024 11:00
Location: Yard, Boulder, Colorado, United States
Observer: Aidan Bodeo-Lomicky
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