Colorado Review List

what to document

Observations of the following species or any bird species not accepted to the state list, must be documented and accepted for our understanding of bird distribution in the state to be updated. Additional species may require documentation based on location/county. Select a county to create a list of all review list species for a particular county.

New to State

Black-bellied Whistling-Duck

Dendrocygna autumnalis

Fulvous Whistling-Duck

Dendrocygna bicolor

Pink-footed Goose

Anser brachyrhynchus

Brant

Branta bernicla

Barnacle Goose

Branta leucopsis

Garganey

Spatula querquedula

Eurasian Wigeon

Mareca penelope

American Black Duck

Anas rubripes

Mottled Duck

Anas fulvigula

Tufted Duck

Aythya fuligula

Harlequin Duck

Histrionicus histrionicus

California Quail

Callipepla californica

Ruffed Grouse

Bonasa umbellus

Band-tailed Pigeon

Patagioenas fasciata

*Document Records from These Counties*
Adams	Cheyenne	Kiowa	Morgan	Sedgwick
Arapahoe	Crowley	Kit Carson	Otero	Washington
Baca	Denver	Lincoln	Phillips	Weld
Bent	Elbert	Logan	Prowers	Yuma
Broomfield

Inca Dove

Columbina inca

Common Ground Dove

Columbina passerina

Groove-billed Ani

Crotophaga sulcirostris

Black-billed Cuckoo

Coccyzus erythropthalmus

Lesser Nighthawk

Chordeiles acutipennis

Eastern Whip-poor-will

Antrostomus vociferus

Mexican Whip-poor-will

Antrostomus arizonae

Black Swift

Cypseloides niger

*Document Records from These Counties*
Adams	Cheyenne	Kiowa	Morgan	Sedgwick
Arapahoe	Crowley	Kit Carson	Otero	Washington
Baca	Denver	Lincoln	Phillips	Weld
Bent	Elbert	Logan	Prowers	Yuma
Broomfield

Chimney Swift

Chaetura pelagica

*Document Records from These Counties*
Alamosa	Costilla	Gunnison	Moffat	Saguache
Archuleta	Dolores	Hinsdale	Park	San Juan
Chaffee	Eagle	Jackson	Pitkin	San Miguel
Clear Creek	Garfield	Lake	Rio Blanco	Summit
Conejos	Gilpin	Mineral	Routt	Teller

Vaux's Swift

Chaetura vauxi

White-throated Swift

Aeronautes saxatalis

*Document Records from These Counties*
Arapahoe	Denver	Lake	Morgan	Sedgwick
Cheyenne	Kiowa	Lincoln	Phillips	Washington
Crowley	Kit Carson	Logan	Prowers	Yuma

Mexican Violetear

Colibri thalassinus

Rivoli’s Hummingbird

Eugenes fulgens

Blue-throated Mountain-gem

Lampornis clemenciae

Ruby-throated Hummingbird

Archilochus colubris

Anna's Hummingbird

Calypte anna

Costa's Hummingbird

Calypte costae

Broad-billed Hummingbird

Cynanthus latirostris

White-eared Hummingbird

Hylocharis leucotis

King Rail

Rallus elegans

Common Gallinule

Gallinula galeata

Purple Gallinule

Porphyrio martinicus

Yellow Rail

Coturnicops noveboracensis

Black Rail

Laterallus jamaicensis

*Document Records from These Counties*
Alamosa	Custer	Gunnison	Logan	Rio Grande
Arapahoe	Delta	Hinsdale	Mesa	Routt
Archuleta	Denver	Huerfano	Mineral	Saguache
Baca	Dolores	Jackson	Moffat	San Juan
Boulder	Douglas	Jefferson	Montezuma	San Miguel
Broomfield	Eagle	Kiowa	Montrose	Sedgwick
Chaffee	El Paso	Kit Carson	Morgan	Summit
Cheyenne	Elbert	La Plata	Ouray	Teller
Clear Creek	Fremont	Lake	Park	Washington
Conejos	Garfield	Larimer	Phillips	Weld
Costilla	Gilpin	Las Animas	Pitkin	Yuma
Crowley	Grand	Lincoln	Rio Blanco	Adams

Whooping Crane

Grus americana

American Golden-Plover

Pluvialis dominica

*Document Records from These Counties*
Alamosa	Conejos	Gilpin	Las Animas	Rio Blanco
Archuleta	Custer	Grand	Lincoln	Saguache
Baca	Denver	Gunnison	Mineral	San Juan
Broomfield	Dolores	Hinsdale	Montezuma	San Miguel
Chaffee	Eagle	Huerfano	Montrose	Summit
Cheyenne	Elbert	La Plata	Ouray	Teller
Clear Creek	Fremont	Lake	Pitkin

Piping Plover

Charadrius melodus

*Document Records from These Counties*
Adams	Custer	Gunnison	Mesa	Rio Blanco
Alamosa	Delta	Hinsdale	Mineral	Rio Grande
Arapahoe	Denver	Huerfano	Moffat	Routt
Archuleta	Dolores	Jackson	Montezuma	Saguache
Baca	Douglas	Jefferson	Montrose	San Juan
Boulder	Eagle	Kit Carson	Morgan	San Miguel
Broomfield	El Paso	La Plata	Otero	Sedgwick
Chaffee	Elbert	Lake	Ouray	Summit
Cheyenne	Fremont	Larimer	Park	Teller
Clear Creek	Garfield	Las Animas	Phillips	Washington
Conejos	Gilpin	Lincoln	Pitkin	Weld
Costilla	Grand	Logan	Pueblo	Yuma
Crowley

Mountain Plover

Charadrius montanus

*Document Records from These Counties*
Alamosa	Garfield	Lake	Montrose	Routt
Archuleta	Grand	Mesa	Ouray	San Juan
Delta	Gunnison	Mineral	Pitkin	San Miguel
Dolores	Hinsdale	Moffat	Rio Blanco	Summit
Eagle	La Plata	Montezuma

Snowy Plover

Charadrius nivosus

*Document Records from These Counties*
Adams	Custer	Gunnison	Mesa	Rio Grande
Alamosa	Delta	Hinsdale	Mineral	Routt
Arapahoe	Denver	Huerfano	Moffat	Saguache
Archuleta	Dolores	Jackson	Montezuma	San Juan
Baca	Douglas	Jefferson	Montrose	San Miguel
Boulder	Eagle	Kit Carson	Morgan	Sedgwick
Broomfield	El Paso	La Plata	Ouray	Summit
Chaffee	Elbert	Lake	Park	Teller
Cheyenne	Fremont	Larimer	Phillips	Washington
Clear Creek	Garfield	Las Animas	Pitkin	Weld
Conejos	Gilpin	Lincoln	Pueblo	Yuma
Costilla	Grand	Logan	Rio Blanco

Upland Sandpiper

Bartramia longicauda

*Document Records from These Counties*
Alamosa	Delta	Hinsdale	Montezuma	Routt
Archuleta	Dolores	Jackson	Montrose	Saguache
Chaffee	Eagle	La Plata	Ouray	San Juan
Clear Creek	Garfield	Lake	Park	San Miguel
Conejos	Gilpin	Mesa	Pitkin	Summit
Costilla	Grand	Mineral	Rio Blanco	Teller
Custer	Gunnison	Moffat	Rio Grande

Whimbrel

Numenius phaeopus

*Document Records from These Counties*
Alamosa	Conejos	Gilpin	Las Animas	Rio Grande
Archuleta	Costilla	Gunnison	Mineral	Saguache
Baca	Custer	Hinsdale	Montezuma	San Juan
Chaffee	Dolores	Jackson	Montrose	San Miguel
Cheyenne	Eagle	Kit Carson	Ouray	Summit
Clear Creek	Garfield	Lake	Pitkin

Eskimo Curlew

Numenius borealis

Hudsonian Godwit

Limosa haemastica

Red Knot

Calidris canutus

Ruff

Calidris pugnax

Sharp-tailed Sandpiper

Calidris acuminata

Curlew Sandpiper

Calidris ferruginea

Purple Sandpiper

Calidris maritima

White-rumped Sandpiper

Calidris fuscicollis

*Document Records from These Counties*
Alamosa	Custer	Grand	Montezuma	Saguache
Archuleta	Dolores	Hinsdale	Ouray	San Juan
Broomfield	Eagle	Jackson	Pitkin	San Miguel
Chaffee	Fremont	Lake	Rio Grande	Summit
Clear Creek	Garfield	Mineral	Routt	Teller
Conejos	Gilpin

Buff-breasted Sandpiper

Calidris subruficollis

*Document Records from These Counties*
Alamosa	Crowley	Grand	Lincoln	Pitkin
Archuleta	Custer	Gunnison	Mesa	Prowers
Baca	Delta	Hinsdale	Mineral	Rio Blanco
Boulder	Denver	Huerfano	Moffat	Rio Grande
Broomfield	Dolores	Jackson	Montezuma	Routt
Chaffee	Eagle	Kit Carson	Montrose	Saguache
Cheyenne	Elbert	La Plata	Otero	San Juan
Clear Creek	Fremont	Lake	Ouray	San Miguel
Conejos	Garfield	Larimer	Park	Summit
Costilla	Gilpin	Las Animas	Phillips	Teller

American Woodcock

Scolopax minor

Pomarine Jaeger

Stercorarius pomarinus

Parasitic Jaeger

Stercorarius parasiticus

Long-tailed Jaeger

Stercorarius longicaudus

Long-billed Murrelet

Brachyramphus perdix

Ancient Murrelet

Synthliboramphus antiquus

Ivory Gull

Pagophila eburnea

Black-headed Gull

Chroicocephalus ridibundus

Little Gull

Hydrocoloeus minutus

Ross's Gull

Rhodostethia rosea

Laughing Gull

Leucophaeus atricilla

*Document Records from These Counties*
Alamosa	Delta	Hinsdale	Mesa	Prowers
Archuleta	Dolores	Huerfano	Mineral	Rio Blanco
Boulder	Eagle	Jackson	Moffat	Rio Grande
Broomfield	Elbert	Kit Carson	Montezuma	Routt
Chaffee	Fremont	La Plata	Montrose	San Juan
Cheyenne	Garfield	Lake	Ouray	San Miguel
Clear Creek	Gilpin	Las Animas	Park	Summit
Conejos	Grand	Lincoln	Phillips	Teller
Costilla	Gunnison	Logan	Pitkin	Yuma
Custer

Western Gull

Larus occidentalis

Iceland Gull

Larus glaucoides

*Document Records from These Counties*
Alamosa	Custer	Gunnison	Mineral	Rio Blanco
Archuleta	Dolores	Hinsdale	Moffat	Rio Grande
Baca	Eagle	Jackson	Montezuma	Saguache
Chaffee	Elbert	Kit Carson	Montrose	San Juan
Cheyenne	Fremont	La Plata	Ouray	San Miguel
Clear Creek	Garfield	Lake	Phillips	Summit
Conejos	Gilpin	Lincoln	Pitkin	Teller
Costilla	Grand

Lesser Black-backed Gull

Larus fuscus

*Document Records from These Counties*
Archuleta	Delta	Hinsdale	Moffat	Rio Grande
Baca	Dolores	Jackson	Montezuma	Routt
Chaffee	Eagle	Kit Carson	Montrose	Saguache
Cheyenne	Elbert	La Plata	Ouray	San Juan
Clear Creek	Garfield	Lake	Phillips	San Miguel
Conejos	Gilpin	Las Animas	Pitkin	Summit
Costilla	Grand	Lincoln	Rio Blanco	Teller
Custer	Gunnison	Mineral

Slaty-backed Gull

Larus schistisagus

Glaucous-winged Gull

Larus glaucescens

Glaucous Gull

Larus hyperboreus

*Document Records from These Counties*
Alamosa	Delta	Hinsdale	Mineral	Prowers
Archuleta	Dolores	Huerfano	Moffat	Rio Grande
Baca	Eagle	Jackson	Montezuma	Routt
Chaffee	Elbert	Kit Carson	Montrose	Saguache
Cheyenne	Fremont	La Plata	Ouray	San Juan
Clear Creek	Garfield	Lake	Park	San Miguel
Conejos	Gilpin	Las Animas	Phillips	Summit
Costilla	Grand	Lincoln	Pitkin	Teller
Custer	Gunnison

Great Black-backed Gull

Larus marinus

*Document Records from These Counties*
Adams	Custer	Grand	Mesa	Prowers
Alamosa	Delta	Gunnison	Mineral	Rio Blanco
Archuleta	Denver	Hinsdale	Moffat	Rio Grande
Baca	Dolores	Huerfano	Montezuma	Routt
Broomfield	Douglas	Jackson	Montrose	Saguache
Chaffee	Eagle	Kit Carson	Morgan	San Juan
Cheyenne	El Paso	La Plata	Otero	San Miguel
Clear Creek	Elbert	Lake	Ouray	Sedgwick
Conejos	Fremont	Larimer	Park	Summit
Costilla	Garfield	Las Animas	Phillips	Teller
Crowley	Gilpin	Lincoln	Pitkin	Yuma

Kelp Gull

Larus dominicanus

Sooty Tern

Onychoprion fuscatus

Least Tern

Sternula antillarum

*Document Records from These Counties*
Adams	Crowley	Grand	Logan	Rio Blanco
Alamosa	Custer	Gunnison	Mesa	Rio Grande
Arapahoe	Delta	Hinsdale	Mineral	Routt
Archuleta	Denver	Huerfano	Moffat	Saguache
Baca	Dolores	Jackson	Montezuma	San Juan
Boulder	Douglas	Jefferson	Montrose	San Miguel
Broomfield	Eagle	Kit Carson	Morgan	Sedgwick
Chaffee	El Paso	La Plata	Ouray	Summit
Cheyenne	Elbert	Lake	Park	Teller
Clear Creek	Fremont	Larimer	Phillips	Washington
Conejos	Garfield	Las Animas	Pitkin	Weld
Costilla	Gilpin	Lincoln	Pueblo	Yuma

Arctic Tern

Sterna paradisaea

Royal Tern

Thalasseus maximus

Sandwich Tern

Thalasseus sandvicensis

Black Skimmer

Rynchops niger

Arctic Loon

Gavia arctica

Pacific Loon

Gavia pacifica

*Document Records from These Counties*
Alamosa	Delta	Hinsdale	Montezuma	Routt
Archuleta	Dolores	Jackson	Montrose	Saguache
Chaffee	Eagle	La Plata	Ouray	San Juan
Clear Creek	Garfield	Lake	Park	San Miguel
Conejos	Gilpin	Mesa	Pitkin	Summit
Costilla	Grand	Mineral	Rio Blanco	Teller
Custer	Gunnison	Moffat	Rio Grande

Yellow-billed Loon

Gavia adamsii

Wood Stork

Mycteria americana

Magnificent Frigatebird

Fregata magnificens

Brown Booby

Sula leucogaster

Anhinga

Anhinga anhinga

Neotropic Cormorant

Phalacrocorax brasilianus

Brown Pelican

Pelecanus occidentalis

Least Bittern

Ixobrychus exilis

except southeastern Colorado

*Document Records from These Counties*
Adams	Crowley	Gunnison	Mineral	Rio Blanco
Alamosa	Custer	Hinsdale	Moffat	Rio Grande
Arapahoe	Delta	Huerfano	Montezuma	Routt
Archuleta	Denver	Jackson	Montrose	Saguache
Baca	Dolores	Jefferson	Morgan	San Juan
Bent	Douglas	Kiowa	Otero	San Miguel
Boulder	Eagle	Kit Carson	Ouray	Sedgwick
Broomfield	El Paso	La Plata	Park	Summit
Chaffee	Elbert	Lake	Phillips	Teller
Cheyenne	Fremont	Larimer	Pitkin	Washington
Clear Creek	Garfield	Lincoln	Prowers	Weld
Conejos	Gilpin	Logan	Pueblo	Yuma
Costilla	Grand	Mesa

Little Blue Heron

Egretta caerulea

only birds in juvenal plumage (white)

Tricolored Heron

Egretta tricolor

Reddish Egret

Egretta rufescens

Yellow-crowned Night-Heron

Nyctanassa violacea

White Ibis

Eudocimus albus

Roseate Spoonbill

Platalea ajaja

Black Vulture

Coragyps atratus

White-tailed Kite

Elanus leucurus

Swallow-tailed Kite

Elanoides forficatus

Mississippi Kite

Ictinia mississippiensis

*Document Records from These Counties*
Adams	Custer	Grand	Mesa	Rio Blanco
Alamosa	Delta	Gunnison	Mineral	Rio Grande
Arapahoe	Denver	Hinsdale	Moffat	Routt
Archuleta	Dolores	Huerfano	Montezuma	Saguache
Boulder	Douglas	Jackson	Montrose	San Juan
Broomfield	Eagle	Jefferson	Morgan	San Miguel
Chaffee	Elbert	La Plata	Ouray	Summit
Clear Creek	Fremont	Lake	Park	Teller
Conejos	Garfield	Larimer	Pitkin	Washington
Costilla	Gilpin

Common Black Hawk

Buteogallus anthracinus

Harris's Hawk

Parabuteo unicinctus

Red-shouldered Hawk

Buteo lineatus

Broad-winged Hawk

Buteo platypterus

*Document Records from These Counties*
Alamosa	Delta	Hinsdale	Montezuma	Routt
Archuleta	Dolores	Jackson	Montrose	Saguache
Chaffee	Eagle	La Plata	Ouray	San Juan
Clear Creek	Garfield	Lake	Park	San Miguel
Conejos	Gilpin	Mesa	Pitkin	Summit
Costilla	Grand	Mineral	Rio Blanco	Teller
Custer	Gunnison	Moffat	Rio Grande

Zone-tailed Hawk

Buteo albonotatus

Flammulated Owl

Psiloscops flammeolus

*Document Records from These Counties*
Adams	Cheyenne	Kiowa	Morgan	Sedgwick
Arapahoe	Crowley	Kit Carson	Otero	Washington
Baca	Denver	Lincoln	Phillips	Weld
Bent	Elbert	Logan	Prowers	Yuma
Broomfield

Snowy Owl

Bubo scandiacus

Spotted Owl

Strix occidentalis

*Document Records from These Counties*
Adams	Costilla	Hinsdale	Moffat	Rio Grande
Alamosa	Crowley	Jackson	Montezuma	Routt
Arapahoe	Delta	Jefferson	Montrose	Saguache
Archuleta	Denver	Kiowa	Morgan	San Juan
Baca	Dolores	Kit Carson	Otero	San Miguel
Bent	Douglas	La Plata	Ouray	Sedgwick
Boulder	Eagle	Lake	Park	Summit
Broomfield	Elbert	Larimer	Phillips	Teller
Chaffee	Garfield	Lincoln	Pitkin	Washington
Cheyenne	Gilpin	Logan	Prowers	Weld
Clear Creek	Grand	Mesa	Rio Blanco	Yuma
Conejos	Gunnison	Mineral

Barred Owl

Strix varia

Boreal Owl

Aegolius funereus

*Document Records from These Counties*
Adams	Crowley	Huerfano	Moffat	Pueblo
Arapahoe	Custer	Jefferson	Montezuma	Saguache
Archuleta	Denver	Kiowa	Montrose	Sedgwick
Baca	Dolores	Kit Carson	Morgan	Teller
Bent	Douglas	La Plata	Otero	Washington
Broomfield	El Paso	Las Animas	Phillips	Weld
Cheyenne	Elbert	Lincoln	Prowers	Yuma
Costilla	Fremont	Logan

Red-headed Woodpecker

Melanerpes erythrocephalus

*Document Records from These Counties*
Alamosa	Costilla	Mineral	Ouray	San Juan
Archuleta	Dolores	Montezuma	Pitkin	San Miguel
Broomfield	Gilpin	Montrose	Saguache	Summit
Conejos	Hinsdale

Acorn Woodpecker

Melanerpes formicivorus

not birds at known site in Durango

Red-bellied Woodpecker

Melanerpes carolinus

*Document Records from These Counties*
Alamosa	Denver	Gunnison	Moffat	Rio Grande
Archuleta	Dolores	Hinsdale	Montezuma	Routt
Broomfield	Douglas	Jackson	Montrose	Saguache
Chaffee	Eagle	Jefferson	Ouray	San Juan
Conejos	Garfield	La Plata	Park	San Miguel
Costilla	Gilpin	Lake	Pitkin	Summit
Custer	Grand	Mineral	Rio Blanco	Teller
Delta

Williamson's Sapsucker

Sphyrapicus thyroideus

*Document Records from These Counties*
Adams	Cheyenne	Kiowa	Morgan	Sedgwick
Arapahoe	Crowley	Kit Carson	Otero	Washington
Baca	Denver	Lincoln	Phillips	Weld
Bent	Elbert	Logan	Prowers	Yuma
Broomfield

Red-breasted Sapsucker

Sphyrapicus ruber

American Three-toed Woodpecker

Picoides dorsalis

*Document Records from These Counties*
Adams	Cheyenne	Kiowa	Morgan	Sedgwick
Arapahoe	Crowley	Kit Carson	Otero	Washington
Baca	Denver	Lincoln	Phillips	Weld
Bent	Elbert	Logan	Prowers	Yuma
Broomfield

Black-backed Woodpecker

Picoides arcticus

Crested Caracara

Caracara cheriway

Gyrfalcon

Falco rusticolus

Rosy-faced Lovebird

Agapornis roseicollis

Rose-throated Becard

Pachyramphus aglaiae

Eastern Wood-Pewee

Contopus virens

Yellow-bellied Flycatcher

Empidonax flaviventris

Acadian Flycatcher

Empidonax virescens

Alder Flycatcher

Empidonax alnorum

*Document Records from These Counties*
Alamosa	Dolores	Jackson	Morgan	Routt
Archuleta	Eagle	La Plata	Ouray	Saguache
Chaffee	Garfield	Mesa	Park	San Juan
Clear Creek	Gilpin	Mineral	Pitkin	San Miguel
Conejos	Grand	Moffat	Rio Blanco	Summit
Costilla	Gunnison	Montezuma	Rio Grande	Teller
Delta	Hinsdale	Montrose

Least Flycatcher

Empidonax minimus

*Document Records from These Counties*
Archuleta	Custer	Jackson	Montrose	Routt
Chaffee	Garfield	La Plata	Ouray	Saguache
Clear Creek	Gilpin	Lake	Park	San Juan
Conejos	Grand	Mineral	Pitkin	San Miguel
Costilla	Hinsdale	Montezuma

Gray Flycatcher

Empidonax wrightii

*Document Records from These Counties*
Adams	Clear Creek	Jackson	Morgan	Sedgwick
Arapahoe	Crowley	Jefferson	Otero	Summit
Baca	Denver	Kiowa	Park	Teller
Boulder	Elbert	Kit Carson	Phillips	Washington
Broomfield	Gilpin	Larimer	Prowers	Weld
Cheyenne	Grand	Logan	Routt	Yuma

Buff-breasted Flycatcher

Empidonax fulvifrons

Black Phoebe

Sayornis nigricans

*Document Records from These Counties*
Adams	Crowley	Huerfano	Mineral	Rio Grande
Alamosa	Custer	Jackson	Moffat	Routt
Arapahoe	Denver	Jefferson	Morgan	Saguache
Baca	Douglas	Kiowa	Otero	San Juan
Bent	Eagle	Kit Carson	Ouray	Sedgwick
Boulder	El Paso	Lake	Park	Summit
Broomfield	Elbert	Larimer	Phillips	Teller
Cheyenne	Gilpin	Las Animas	Pitkin	Washington
Clear Creek	Grand	Lincoln	Prowers	Weld
Conejos	Hinsdale	Logan	Rio Blanco	Yuma
Costilla

Dusky-capped Flycatcher

Myiarchus tuberculifer

Great Crested Flycatcher

Myiarchus crinitus

*Document Records from These Counties*
Alamosa	Delta	Grand	Montezuma	Routt
Archuleta	Denver	Gunnison	Montrose	Saguache
Broomfield	Dolores	Hinsdale	Ouray	San Juan
Clear Creek	Eagle	Jackson	Pitkin	San Miguel
Conejos	Elbert	La Plata	Rio Blanco	Summit
Costilla	Garfield	Lake	Rio Grande	Teller
Custer	Gilpin	Mineral

Brown-crested Flycatcher

Myiarchus tyrannulus

Great Kiskadee

Pitangus sulphuratus

Sulphur-bellied Flycatcher

Myiodynastes luteiventris

Tropical Kingbird

Tyrannus melancholicus

Couch's Kingbird

Tyrannus couchii

Thick-billed Kingbird

Tyrannus crassirostris

Fork-tailed Flycatcher

Tyrannus savana

White-eyed Vireo

Vireo griseus

*Document Records from These Counties*
Alamosa	Delta	Hinsdale	Montezuma	Routt
Archuleta	Dolores	Jackson	Montrose	Saguache
Chaffee	Eagle	La Plata	Ouray	San Juan
Clear Creek	Garfield	Lake	Park	San Miguel
Conejos	Gilpin	Mesa	Pitkin	Summit
Costilla	Grand	Mineral	Rio Blanco	Teller
Custer	Gunnison	Moffat	Rio Grande

Bell's Vireo

Vireo bellii

*Document Records from These Counties*
Adams	Crowley	Grand	Mesa	Rio Blanco
Alamosa	Delta	Gunnison	Mineral	Rio Grande
Arapahoe	Denver	Hinsdale	Moffat	Routt
Archuleta	Dolores	Huerfano	Montezuma	Saguache
Boulder	Douglas	Jackson	Montrose	San Juan
Broomfield	Eagle	Jefferson	Morgan	San Miguel
Chaffee	Elbert	La Plata	Otero	Summit
Clear Creek	Fremont	Lake	Ouray	Teller
Conejos	Garfield	Larimer	Park	Weld
Costilla	Gilpin	Las Animas	Pitkin

Yellow-throated Vireo

Vireo flavifrons

*Document Records from These Counties*
Alamosa	Delta	Hinsdale	Montezuma	Routt
Archuleta	Dolores	Jackson	Montrose	Saguache
Chaffee	Eagle	La Plata	Ouray	San Juan
Clear Creek	Garfield	Lake	Park	San Miguel
Conejos	Gilpin	Mesa	Pitkin	Summit
Costilla	Grand	Mineral	Rio Blanco	Teller
Custer	Gunnison	Moffat	Rio Grande

Blue-headed Vireo

Vireo solitarius

*Document Records from These Counties*
Alamosa	Delta	Hinsdale	Mineral	Rio Blanco
Archuleta	Denver	Huerfano	Moffat	Rio Grande
Broomfield	Dolores	Jackson	Montezuma	Routt
Chaffee	Eagle	Kit Carson	Montrose	Saguache
Cheyenne	Elbert	La Plata	Morgan	San Juan
Clear Creek	Fremont	Lake	Otero	San Miguel
Conejos	Garfield	Las Animas	Park	Sedgwick
Costilla	Gilpin	Logan	Phillips	Summit
Crowley	Grand	Mesa	Pitkin	Teller
Custer	Gunnison

Philadelphia Vireo

Vireo philadelphicus

*Document Records from These Counties*
Alamosa	Custer	Gilpin	Lincoln	Pitkin
Archuleta	Delta	Grand	Logan	Rio Blanco
Broomfield	Denver	Hinsdale	Mesa	Rio Grande
Chaffee	Dolores	Huerfano	Mineral	Routt
Cheyenne	Douglas	Jackson	Moffat	Saguache
Clear Creek	Eagle	Kiowa	Montezuma	San Juan
Conejos	Elbert	Kit Carson	Montrose	San Miguel
Costilla	Fremont	La Plata	Ouray	Summit
Crowley	Garfield	Lake	Park	Teller

Yellow-green Vireo

Vireo flavoviridis

Mexican Jay

Aphelocoma wollweberi

Clark's Nutcracker

Nucifraga columbiana

*Document Records from These Counties*
Adams	Cheyenne	Kiowa	Morgan	Sedgwick
Arapahoe	Crowley	Kit Carson	Otero	Washington
Baca	Denver	Lincoln	Phillips	Weld
Bent	Elbert	Logan	Prowers	Yuma
Broomfield

Chihuahuan Raven

Corvus cryptoleucus

*Document Records from These Counties*
Adams	Arapahoe	Boulder	Chaffee	Clear Creek
Alamosa	Archuleta	Broomfield

Common Raven

Corvus corax

*Document Records from These Counties*
Bent	Elbert	Lincoln	Otero	Sedgwick
Cheyenne	Kiowa	Logan	Phillips	Washington
Crowley	Kit Carson	Morgan	Prowers	Yuma

Purple Martin

Progne subis

*Document Records from These Counties*
Adams	Arapahoe	Elbert	Lincoln

Cave Swallow

Petrochelidon fulva

Pygmy Nuthatch

Sitta pygmaea

*Document Records from These Counties*
Bent	Crowley	Kit Carson	Morgan	Sedgwick
Cheyenne	Kiowa	Lincoln	Rio Blanco	Washington

Canyon Wren

Catherpes mexicanus

*Document Records from These Counties*
Arapahoe	Grand	Lake	Morgan	Summit
Broomfield	Hinsdale	Lincoln	Phillips	Washington
Crowley	Jackson	Logan	San Juan	Yuma
Denver	Kiowa	Mineral	Sedgwick

Pacific Wren

Troglodytes pacificus

Winter Wren

Troglodytes hiemalis

*Document Records from These Counties*
San Miguel	Cheyenne	Garfield	Mineral	Rio Blanco
Summit	Conejos	Grand	Moffat	Rio Grande
Alamosa	Costilla	Hinsdale	Montezuma	Routt
Archuleta	Dolores	Jackson	Montrose	Saguache
Broomfield	Elbert	Lake	Ouray	San Juan
Chaffee

Sedge Wren

Cistothorus platensis

Bewick's Wren

Thryomanes bewickii

*Document Records from These Counties*
Alamosa	Elbert	Kit Carson	Phillips	Sedgwick
Broomfield	Gilpin	Lincoln	Rio Grande	Summit
Cheyenne	Grand	Logan	Saguache	Washington
Clear Creek	Hinsdale	Mineral	San Juan	Yuma
Denver	Jackson

Cactus Wren

Campylorhynchus brunneicapillus

American Dipper

Cinclus mexicanus

*Document Records from These Counties*
Arapahoe	Cheyenne	Kiowa	Morgan	Sedgwick
Baca	Crowley	Kit Carson	Otero	Washington
Bent	Denver	Lincoln	Phillips	Weld
Broomfield	Elbert	Logan	Prowers	Yuma

Eastern Bluebird

Sialia sialis

*Document Records from These Counties*
Alamosa	Delta	Hinsdale	Montezuma	Routt
Archuleta	Dolores	Jackson	Montrose	Saguache
Chaffee	Eagle	La Plata	Ouray	San Juan
Clear Creek	Garfield	Lake	Park	San Miguel
Conejos	Gilpin	Mesa	Pitkin	Summit
Costilla	Grand	Mineral	Rio Blanco	Teller
Custer	Gunnison	Moffat	Rio Grande

Western Bluebird

Sialia mexicana

*Document Records from These Counties*
Adams	Cheyenne	Kiowa	Morgan	Sedgwick
Arapahoe	Crowley	Kit Carson	Otero	Washington
Baca	Denver	Lincoln	Phillips	Weld
Bent	Elbert	Logan	Prowers	Yuma
Broomfield

Gray-cheeked Thrush

Catharus minimus

*Document Records from These Counties*
Alamosa	Dolores	Huerfano	Moffat	Rio Grande
Archuleta	Douglas	Jackson	Montezuma	Routt
Broomfield	Eagle	Jefferson	Montrose	Saguache
Chaffee	Elbert	Kiowa	Morgan	San Juan
Cheyenne	Fremont	La Plata	Ouray	San Miguel
Clear Creek	Garfield	Lake	Park	Sedgwick
Conejos	Gilpin	Las Animas	Phillips	Summit
Costilla	Grand	Mesa	Pitkin	Teller
Custer	Gunnison	Mineral	Rio Blanco	Washington
Delta	Hinsdale

Wood Thrush

Hylocichla mustelina

*Document Records from These Counties*
Alamosa	Delta	Gunnison	Montezuma	Rio Grande
Archuleta	Dolores	Hinsdale	Montrose	Routt
Chaffee	Eagle	Jackson	Ouray	Saguache
Clear Creek	Fremont	La Plata	Park	San Juan
Conejos	Garfield	Lake	Pitkin	San Miguel
Costilla	Gilpin	Mineral	Rio Blanco	Summit
Custer	Grand	Moffat

Curve-billed Thrasher

Toxostoma curvirostre

*Document Records from These Counties*
Adams	Custer	Hinsdale	Moffat	Routt
Alamosa	Delta	Jackson	Montezuma	Saguache
Arapahoe	Denver	Jefferson	Montrose	San Juan
Archuleta	Dolores	Kit Carson	Morgan	San Miguel
Boulder	Douglas	La Plata	Ouray	Sedgwick
Broomfield	Eagle	Lake	Park	Summit
Chaffee	Elbert	Larimer	Phillips	Teller
Cheyenne	Garfield	Logan	Pitkin	Washington
Clear Creek	Gilpin	Mesa	Rio Blanco	Weld
Conejos	Grand	Mineral	Rio Grande	Yuma
Costilla	Gunnison

Brown Thrasher

Toxostoma rufum

*Document Records from These Counties*
Alamosa	Delta	Hinsdale	Montezuma	Routt
Archuleta	Dolores	Jackson	Montrose	Saguache
Chaffee	Eagle	La Plata	Ouray	San Juan
Clear Creek	Garfield	Lake	Park	San Miguel
Conejos	Gilpin	Mesa	Pitkin	Summit
Costilla	Grand	Mineral	Rio Blanco	Teller
Custer	Gunnison	Moffat	Rio Grande

Long-billed Thrasher

Toxostoma longirostre

Bendire's Thrasher

Toxostoma bendirei

Phainopepla

Phainopepla nitens

Sprague's Pipit

Anthus spragueii

*Document Records from These Counties*
Adams	Custer	Gunnison	Mineral	Pueblo
Alamosa	Delta	Hinsdale	Moffat	Rio Blanco
Arapahoe	Denver	Huerfano	Montezuma	Rio Grande
Archuleta	Dolores	Jackson	Montrose	Routt
Bent	Douglas	Jefferson	Morgan	Saguache
Broomfield	Eagle	Kiowa	Otero	San Juan
Chaffee	El Paso	Kit Carson	Ouray	San Miguel
Cheyenne	Elbert	La Plata	Park	Summit
Clear Creek	Fremont	Lake	Phillips	Teller
Conejos	Garfield	Las Animas	Pitkin	Washington
Costilla	Gilpin	Logan	Prowers	Weld
Crowley	Grand	Mesa

Brambling

Fringilla montifringilla

Purple Finch

Haemorhous purpureus

Common Redpoll

Acanthis flammea

*Document Records from These Counties*
Alamosa	Costilla	Hinsdale	Mesa	Ouray
Archuleta	Crowley	Huerfano	Mineral	Saguache
Baca	Delta	La Plata	Montezuma	San Juan
Cheyenne	Dolores	Las Animas	Montrose	San Miguel
Conejos	Garfield

Hoary Redpoll

Acanthis hornemanni

Lawrence's Goldfinch

Spinus lawrencei

Lapland Longspur

Calcarius lapponicus

*Document Records from These Counties*
Alamosa	Delta	Hinsdale	Montezuma	Routt
Archuleta	Dolores	Jackson	Montrose	Saguache
Chaffee	Eagle	La Plata	Ouray	San Juan
Clear Creek	Garfield	Lake	Pitkin	San Miguel
Conejos	Gilpin	Mesa	Rio Blanco	Summit
Costilla	Grand	Mineral	Rio Grande	Teller
Custer	Gunnison	Moffat

Chestnut-collared Longspur

Calcarius ornatus

*Document Records from These Counties*
Alamosa	Delta	Hinsdale	Montezuma	Routt
Archuleta	Dolores	Jackson	Montrose	Saguache
Chaffee	Eagle	La Plata	Ouray	San Juan
Clear Creek	Garfield	Lake	Park	San Miguel
Conejos	Gilpin	Mesa	Pitkin	Summit
Costilla	Grand	Mineral	Rio Blanco	Teller
Custer	Gunnison	Moffat	Rio Grande

Smith's Longspur

Calcarius pictus

McCown's Longspur

Rhynchophanes mccownii

*Document Records from These Counties*
Alamosa	Delta	Hinsdale	Montezuma	Routt
Archuleta	Dolores	Jackson	Montrose	Saguache
Chaffee	Eagle	La Plata	Ouray	San Juan
Clear Creek	Garfield	Lake	Pitkin	San Miguel
Conejos	Gilpin	Mesa	Rio Blanco	Summit
Costilla	Grand	Mineral	Rio Grande	Teller
Custer	Gunnison	Moffat

Snow Bunting

Plectrophenax nivalis

*Document Records from These Counties*
Alamosa	Custer	Gunnison	Mineral	Rio Blanco
Archuleta	Delta	Hinsdale	Moffat	Rio Grande
Baca	Denver	Huerfano	Montezuma	Routt
Broomfield	Dolores	Jackson	Montrose	Saguache
Chaffee	Eagle	Jefferson	Otero	San Juan
Clear Creek	Fremont	Kiowa	Ouray	San Miguel
Conejos	Garfield	La Plata	Pitkin	Summit
Costilla	Gilpin	Lake	Prowers	Teller
Crowley	Grand	Mesa

Black-chinned Sparrow

Spizella atrogularis

Field Sparrow

Spizella pusilla

*Document Records from These Counties*
Adams	Custer	Gilpin	Mesa	Rio Blanco
Alamosa	Delta	Grand	Mineral	Rio Grande
Arapahoe	Denver	Gunnison	Moffat	Routt
Archuleta	Dolores	Hinsdale	Montezuma	Saguache
Broomfield	Douglas	Huerfano	Montrose	San Juan
Chaffee	Eagle	Jackson	Ouray	San Miguel
Clear Creek	Elbert	Jefferson	Park	Summit
Conejos	Fremont	La Plata	Pitkin	Teller
Costilla	Garfield	Lake

Fox Sparrow

Passerella iliaca

Slate-colored

*Document Records from These Counties*
Adams	Cheyenne	Kiowa	Morgan	Sedgwick
Arapahoe	Crowley	Kit Carson	Otero	Washington
Baca	Denver	Lincoln	Phillips	Weld
Bent	Elbert	Logan	Prowers	Yuma
Broomfield

Dark-eyed Junco

Junco hyemalis

White-winged

*Document Records from These Counties*
Alamosa	Delta	Hinsdale	Montezuma	Routt
Archuleta	Dolores	Jackson	Montrose	Saguache
Chaffee	Eagle	La Plata	Ouray	San Juan
Clear Creek	Garfield	Lake	Park	San Miguel
Conejos	Gilpin	Mesa	Pitkin	Summit
Costilla	Grand	Mineral	Rio Blanco	Teller
Custer	Gunnison	Moffat	Rio Grande

Golden-crowned Sparrow

Zonotrichia atricapilla

*Document Records from These Counties*
Alamosa	Delta	Gunnison	Mineral	Rio Blanco
Bent	Denver	Hinsdale	Moffat	Rio Grande
Broomfield	Dolores	Jackson	Montrose	Routt
Cheyenne	Douglas	Kiowa	Morgan	Saguache
Clear Creek	Eagle	Kit Carson	Otero	San Juan
Conejos	Elbert	Lake	Ouray	San Miguel
Costilla	Garfield	Las Animas	Park	Summit
Crowley	Gilpin	Lincoln	Phillips	Teller
Custer	Grand	Mesa	Prowers

Sagebrush Sparrow

Artemisiospiza nevadensis

*Document Records from These Counties*
Adams	Cheyenne	Kiowa	Morgan	Sedgwick
Arapahoe	Crowley	Kit Carson	Otero	Washington
Baca	Denver	Lincoln	Phillips	Weld
Bent	Elbert	Logan	Prowers	Yuma
Broomfield

LeConte's Sparrow

Ammodramus leconteii

Nelson's Sparrow

Ammodramus nelsoni

Baird's Sparrow

Ammodramus bairdii

Henslow's Sparrow

Ammodramus henslowii

Canyon Towhee

Melozone fusca

*Document Records from These Counties*
Adams	Custer	Hinsdale	Moffat	Routt
Alamosa	Delta	Jackson	Montezuma	Saguache
Arapahoe	Denver	Jefferson	Montrose	San Juan
Archuleta	Dolores	Kit Carson	Morgan	San Miguel
Boulder	Douglas	La Plata	Ouray	Sedgwick
Broomfield	Eagle	Lake	Park	Summit
Chaffee	Elbert	Larimer	Phillips	Teller
Cheyenne	Garfield	Lincoln	Pitkin	Washington
Clear Creek	Gilpin	Logan	Rio Blanco	Weld
Conejos	Grand	Mesa	Rio Grande	Yuma
Costilla	Gunnison	Mineral

Eastern Towhee

Pipilo erythrophthalmus

Eastern Meadowlark

Sturnella magna

Hooded Oriole

Icterus cucullatus

Streak-backed Oriole

Icterus pustulatus

Baltimore Oriole

Icterus galbula

*Document Records from These Counties*
Alamosa	Delta	Hinsdale	Moffat	Rio Grande
Archuleta	Dolores	Huerfano	Montezuma	Routt
Chaffee	Eagle	Jackson	Montrose	Saguache
Clear Creek	Garfield	La Plata	Ouray	San Juan
Conejos	Gilpin	Lake	Park	San Miguel
Costilla	Grand	Mesa	Pitkin	Summit
Custer	Gunnison	Mineral	Rio Blanco	Teller

Scott's Oriole

Icterus parisorum

*Document Records from These Counties*
Adams	Crowley	Grand	Lincoln	Rio Grande
Alamosa	Custer	Gunnison	Logan	Routt
Arapahoe	Delta	Hinsdale	Mineral	Saguache
Archuleta	Denver	Huerfano	Moffat	San Juan
Baca	Dolores	Jackson	Morgan	San Miguel
Bent	Douglas	Jefferson	Ouray	Sedgwick
Boulder	Eagle	Kiowa	Park	Summit
Broomfield	El Paso	Kit Carson	Phillips	Teller
Chaffee	Elbert	La Plata	Pitkin	Washington
Cheyenne	Fremont	Lake	Prowers	Weld
Clear Creek	Gilpin	Larimer	Pueblo	Yuma
Conejos

Bronzed Cowbird

Molothrus aeneus

Louisiana Waterthrush

Parkesia motacilla

Golden-winged Warbler

Vermivora chrysoptera

*Document Records from These Counties*
Alamosa	Delta	Hinsdale	Montezuma	Rio Grande
Archuleta	Denver	Huerfano	Montrose	Routt
Broomfield	Dolores	Jackson	Ouray	Saguache
Chaffee	Eagle	Kit Carson	Park	San Juan
Cheyenne	Elbert	Lincoln	Phillips	San Miguel
Clear Creek	Garfield	Mesa	Pitkin	Summit
Costilla	Gilpin	Mineral	Rio Blanco	Teller
Custer	Grand	Moffat

Swainson's Warbler

Limnothlypis swainsonii

Lucy's Warbler

Leiothlypis luciae

except Yellowjacket Canyon

Connecticut Warbler

Oporornis agilis

Mourning Warbler

Geothlypis philadelphia

Cape May Warbler

Setophaga tigrina

Cerulean Warbler

Setophaga cerulea

Tropical Parula

Setophaga pitiayumi

Prairie Warbler

Setophaga discolor

Hermit Warbler

Setophaga occidentalis

Golden-crowned Warbler

Basileuterus culicivorus

Canada Warbler

Cardellina canadensis

Red-faced Warbler

Cardellina rubrifrons

Painted Redstart

Myioborus pictus

Hepatic Tanager

Piranga flava

except southeastern Colorado

*Document Records from These Counties*
Adams	Crowley	Gunnison	Mineral	Rio Blanco
Alamosa	Custer	Hinsdale	Moffat	Rio Grande
Arapahoe	Delta	Huerfano	Montezuma	Routt
Archuleta	Denver	Jackson	Montrose	Saguache
Baca	Dolores	Jefferson	Morgan	San Juan
Bent	Douglas	Kiowa	Otero	San Miguel
Boulder	Eagle	Kit Carson	Ouray	Sedgwick
Broomfield	El Paso	La Plata	Park	Summit
Chaffee	Elbert	Lake	Phillips	Teller
Cheyenne	Fremont	Larimer	Pitkin	Washington
Clear Creek	Garfield	Lincoln	Prowers	Weld
Conejos	Gilpin	Logan	Pueblo	Yuma
Costilla	Grand	Mesa

Scarlet Tanager

Piranga olivacea

*Document Records from These Counties*
Alamosa	Delta	Huerfano	Moffat	Rio Blanco
Archuleta	Dolores	Jackson	Montezuma	Routt
Chaffee	Eagle	La Plata	Montrose	Saguache
Clear Creek	Garfield	Lake	Ouray	San Juan
Conejos	Grand	Mesa	Park	San Miguel
Costilla	Hinsdale	Mineral	Pitkin	Summit
Custer

Pyrrhuloxia

Cardinalis sinuatus

Painted Bunting

Passerina ciris

*Document Records from These Counties*
Alamosa	Custer	Grand	Moffat	Routt
Arapahoe	Denver	Gunnison	Montrose	Saguache
Archuleta	Dolores	Hinsdale	Morgan	San Juan
Broomfield	Douglas	Kit Carson	Park	Sedgwick
Chaffee	Eagle	Lake	Phillips	Teller
Conejos	Fremont	Logan	Pitkin	Washington
Costilla	Garfield	Mesa	Rio Blanco	Weld
Crowley	Gilpin	Mineral	Rio Grande