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Official Colorado State List

520 species from 63 families as of 2/21/2024

Following is the current official state checklist for Colorado.  It includes all species for which the CBRC has deemed that sufficient evidence (level denoted by the evidence code) has been provided to show that the species has occurred in the state. Review List species should be documented on this site. You may download the printable checklist (PDF) for field use.

  • S - specimen (404)
  • P - photo (111)
  • V - video (0)
  • R - recording (3)
  • D - written documentation (2)
  • Ducks, Geese, and Swans (Anatidae)
     SpeciesDistributionReview ListEvidence
    Black-bellied Whistling-Duck    Dendrocygna autumnalis P
    Fulvous Whistling-Duck    Dendrocygna bicolor P
    Snow Goose    Anser caerulescens S
    Ross's Goose    Anser rossii S
    Greater White-fronted Goose    Anser albifrons S
    Pink-footed Goose    Anser brachyrhynchus P
    Brant    Branta bernicla P
    Barnacle Goose    Branta leucopsis P
    Cackling Goose    Branta hutchinsii P
    Canada Goose    Branta canadensis S
    Trumpeter Swan    Cygnus buccinator S
    Tundra Swan    Cygnus columbianus S
    Wood Duck    Aix sponsa S
    Garganey    Spatula querquedula P
    Blue-winged Teal    Spatula discors S
    Cinnamon Teal    Spatula cyanoptera S
    Northern Shoveler    Spatula clypeata S
    Gadwall    Mareca strepera S
    Eurasian Wigeon    Mareca penelope P
    American Wigeon    Mareca americana S
    Mallard    Anas platyrhynchos S
    Mexican Duck    Anas diazi S
    American Black Duck    Anas rubripes S
    Mottled Duck    Anas fulvigula S
    Northern Pintail    Anas acuta S
    Green-winged Teal    Anas crecca S
    Canvasback    Aythya valisineria S
    Redhead    Aythya americana S
    Ring-necked Duck    Aythya collaris S
    Tufted Duck    Aythya fuligula P
    Greater Scaup    Aythya marila S
    Lesser Scaup    Aythya affinis S
    Harlequin Duck    Histrionicus histrionicus S
    Surf Scoter    Melanitta perspicillata S
    White-winged Scoter    Melanitta deglandi S
    Black Scoter    Melanitta americana S
    Long-tailed Duck    Clangula hyemalis S
    Bufflehead    Bucephala albeola S
    Common Goldeneye    Bucephala clangula S
    Barrow's Goldeneye    Bucephala islandica S
    Hooded Merganser    Lophodytes cucullatus S
    Common Merganser    Mergus merganser S
    Red-breasted Merganser    Mergus serrator S
    Ruddy Duck    Oxyura jamaicensis S
  • New World Quail (Odontophoridae)
     SpeciesDistributionReview ListEvidence
    Northern Bobwhite    Colinus virginianus S
    Scaled Quail    Callipepla squamata S
    California Quail    Callipepla californica P
    Gambel's Quail    Callipepla gambelii S
  • Partridges, Grouse, Turkeys, and Old World Quail (Phasianidae)
     SpeciesDistributionReview ListEvidence
    Wild Turkey    Meleagris gallopavo S
    Ruffed Grouse    Bonasa umbellus S
    White-tailed Ptarmigan    Lagopus leucura S
    Greater Sage-Grouse    Centrocercus urophasianus S
    Gunnison Sage-Grouse    Centrocercus minimus S
    Dusky Grouse    Dendragapus obscurus S
    Sharp-tailed Grouse    Tympanuchus phasianellus S
    Greater Prairie-Chicken    Tympanuchus cupido S
    Lesser Prairie-Chicken    Tympanuchus pallidicinctus S
    Ring-necked Pheasant    Phasianus colchicus S
    Chukar    Alectoris chukar S
  • Grebes (Podicipedidae)
     SpeciesDistributionReview ListEvidence
    Pied-billed Grebe    Podilymbus podiceps S
    Horned Grebe    Podiceps auritus S
    Red-necked Grebe    Podiceps grisegena S
    Eared Grebe    Podiceps nigricollis S
    Western Grebe    Aechmophorus occidentalis S
    Clark's Grebe    Aechmophorus clarkii S
  • Pigeons and Doves (Columbidae)
     SpeciesDistributionReview ListEvidence
    Rock Pigeon    Columba livia S
    Band-tailed Pigeon    Patagioenas fasciata S
    Eurasian Collared-Dove    Streptopelia decaocto P
    Inca Dove    Columbina inca P
    Common Ground Dove    Columbina passerina P
    Ruddy Ground Dove    Columbina talpacoti P
    White-winged Dove    Zenaida asiatica S
    Mourning Dove    Zenaida macroura S
  • Cuckoos, Roadrunners, and Anis (Cuculidae)
     SpeciesDistributionReview ListEvidence
    Groove-billed Ani    Crotophaga sulcirostris S
    Greater Roadrunner    Geococcyx californianus S
    Yellow-billed Cuckoo    Coccyzus americanus S
    Black-billed Cuckoo    Coccyzus erythropthalmus S
  • Goatsuckers (Caprimulgidae)
     SpeciesDistributionReview ListEvidence
    Lesser Nighthawk    Chordeiles acutipennis S
    Common Nighthawk    Chordeiles minor S
    Common Poorwill    Phalaenoptilus nuttallii S
    Eastern Whip-poor-will    Antrostomus vociferus S
    Mexican Whip-poor-will    Antrostomus arizonae R
  • Swifts (Apodidae)
     SpeciesDistributionReview ListEvidence
    Black Swift    Cypseloides niger S
    Chimney Swift    Chaetura pelagica S
    Vaux's Swift    Chaetura vauxi P
    White-throated Swift    Aeronautes saxatalis S
  • Hummingbirds (Trochilidae)
     SpeciesDistributionReview ListEvidence
    Mexican Violetear    Colibri thalassinus P
    Rivoli’s Hummingbird    Eugenes fulgens S
    Blue-throated Mountain-gem    Lampornis clemenciae P
    Ruby-throated Hummingbird    Archilochus colubris P
    Black-chinned Hummingbird    Archilochus alexandri S
    Anna's Hummingbird    Calypte anna P
    Costa's Hummingbird    Calypte costae P
    Calliope Hummingbird    Selasphorus calliope S
    Rufous Hummingbird    Selasphorus rufus S
    Broad-tailed Hummingbird    Selasphorus platycercus S
    Broad-billed Hummingbird    Cynanthus latirostris P
    White-eared Hummingbird    Hylocharis leucotis P
  • Rails, Gallinules, and Coots (Rallidae)
     SpeciesDistributionReview ListEvidence
    King Rail    Rallus elegans P
    Virginia Rail    Rallus limicola S
    Sora    Porzana carolina S
    Common Gallinule    Gallinula galeata P
    American Coot    Fulica americana S
    Purple Gallinule    Porphyrio martinicus S
    Yellow Rail    Coturnicops noveboracensis S
    Black Rail    Laterallus jamaicensis R
  • Limpkin (Aramidae)
     SpeciesDistributionReview ListEvidence
    Limpkin    Aramus guarauna P
  • Cranes (Gruidae)
     SpeciesDistributionReview ListEvidence
    Sandhill Crane    Antigone canadensis S
    Whooping Crane    Grus americana S
  • Stilts and Avocets (Recurvirostridae)
     SpeciesDistributionReview ListEvidence
    Black-necked Stilt    Himantopus mexicanus S
    American Avocet    Recurvirostra americana S
  • Lapwings and Plovers (Charadriidae)
     SpeciesDistributionReview ListEvidence
    Black-bellied Plover    Pluvialis squatarola S
    American Golden-Plover    Pluvialis dominica S
    Killdeer    Charadrius vociferus S
    Semipalmated Plover    Charadrius semipalmatus S
    Piping Plover    Charadrius melodus S
    Mountain Plover    Charadrius montanus S
    Snowy Plover    Charadrius nivosus S
  • Sandpipers, Phalaropes, and Allies (Scolopacidae)
     SpeciesDistributionReview ListEvidence
    Upland Sandpiper    Bartramia longicauda S
    Whimbrel    Numenius phaeopus S
    Eskimo Curlew    Numenius borealis S
    Long-billed Curlew    Numenius americanus S
    Hudsonian Godwit    Limosa haemastica S
    Marbled Godwit    Limosa fedoa S
    Ruddy Turnstone    Arenaria interpres S
    Red Knot    Calidris canutus S
    Ruff    Calidris pugnax P
    Sharp-tailed Sandpiper    Calidris acuminata P
    Stilt Sandpiper    Calidris himantopus S
    Curlew Sandpiper    Calidris ferruginea P
    Sanderling    Calidris alba S
    Dunlin    Calidris alpina S
    Purple Sandpiper    Calidris maritima P
    Baird's Sandpiper    Calidris bairdii S
    Least Sandpiper    Calidris minutilla S
    White-rumped Sandpiper    Calidris fuscicollis S
    Buff-breasted Sandpiper    Calidris subruficollis S
    Pectoral Sandpiper    Calidris melanotos S
    Semipalmated Sandpiper    Calidris pusilla S
    Western Sandpiper    Calidris mauri S
    Short-billed Dowitcher    Limnodromus griseus S
    Long-billed Dowitcher    Limnodromus scolopaceus S
    American Woodcock    Scolopax minor S
    Wilson's Snipe    Gallinago delicata S
    Spotted Sandpiper    Actitis macularius S
    Solitary Sandpiper    Tringa solitaria S
    Lesser Yellowlegs    Tringa flavipes S
    Willet    Tringa semipalmata S
    Greater Yellowlegs    Tringa melanoleuca S
    Wilson's Phalarope    Phalaropus tricolor S
    Red-necked Phalarope    Phalaropus lobatus S
    Red Phalarope    Phalaropus fulicarius S
  • Skuas and Jaegers (Stercorariidae)
     SpeciesDistributionReview ListEvidence
    Pomarine Jaeger    Stercorarius pomarinus S
    Parasitic Jaeger    Stercorarius parasiticus P
    Long-tailed Jaeger    Stercorarius longicaudus S
  • Auks, Murres, and Puffins (Alcidae)
     SpeciesDistributionReview ListEvidence
    Long-billed Murrelet    Brachyramphus perdix S
    Ancient Murrelet    Synthliboramphus antiquus S
  • Gulls, Terns, and Skimmers (Laridae)
     SpeciesDistributionReview ListEvidence
    Black-legged Kittiwake    Rissa tridactyla S
    Ivory Gull    Pagophila eburnea S
    Sabine's Gull    Xema sabini S
    Bonaparte's Gull    Chroicocephalus philadelphia S
    Black-headed Gull    Chroicocephalus ridibundus P
    Little Gull    Hydrocoloeus minutus P
    Ross's Gull    Rhodostethia rosea P
    Laughing Gull    Leucophaeus atricilla P
    Franklin's Gull    Leucophaeus pipixcan S
    Short-billed Gull    Larus brachyrhynchus P
    Ring-billed Gull    Larus delawarensis S
    Western Gull    Larus occidentalis P
    California Gull    Larus californicus S
    Herring Gull    Larus argentatus S
    Iceland Gull    Larus glaucoides S
    Lesser Black-backed Gull    Larus fuscus P
    Slaty-backed Gull    Larus schistisagus P
    Glaucous-winged Gull    Larus glaucescens P
    Glaucous Gull    Larus hyperboreus S
    Great Black-backed Gull    Larus marinus P
    Kelp Gull    Larus dominicanus P
    Sooty Tern    Onychoprion fuscatus P
    Least Tern    Sternula antillarum S
    Caspian Tern    Hydroprogne caspia P
    Black Tern    Chlidonias niger S
    Common Tern    Sterna hirundo S
    Arctic Tern    Sterna paradisaea S
    Forster's Tern    Sterna forsteri S
    Royal Tern    Thalasseus maximus P
    Sandwich Tern    Thalasseus sandvicensis P
    Black Skimmer    Rynchops niger P
  • Loons (Gaviidae)
     SpeciesDistributionReview ListEvidence
    Red-throated Loon    Gavia stellata S
    Arctic Loon    Gavia arctica S
    Pacific Loon    Gavia pacifica P
    Common Loon    Gavia immer S
    Yellow-billed Loon    Gavia adamsii S
  • Albatrosses (Diomedeidae)
  • Storks (Ciconiidae)
     SpeciesDistributionReview ListEvidence
    Wood Stork    Mycteria americana S
  • Frigatebirds (Fregatidae)
     SpeciesDistributionReview ListEvidence
    Magnificent Frigatebird    Fregata magnificens P
  • Boobies and Gannets (Sulidae)
     SpeciesDistributionReview ListEvidence
    Brown Booby    Sula leucogaster P
  • Darters (Anhingidae)
     SpeciesDistributionReview ListEvidence
    Anhinga    Anhinga anhinga S
  • Cormorants (Phalacrocoracidae)
     SpeciesDistributionReview ListEvidence
    Double-crested Cormorant    Phalacrocorax auritus S
    Neotropic Cormorant    Phalacrocorax brasilianus S
  • Pelicans (Pelecanidae)
     SpeciesDistributionReview ListEvidence
    American White Pelican    Pelecanus erythrorhynchos S
    Brown Pelican    Pelecanus occidentalis S
  • Bitterns, Herons, and Allies (Ardeidae)
     SpeciesDistributionReview ListEvidence
    American Bittern    Botaurus lentiginosus S
    Least Bittern    Ixobrychus exilis S
    Great Blue Heron    Ardea herodias S
    Great Egret    Ardea alba S
    Snowy Egret    Egretta thula S
    Little Blue Heron    Egretta caerulea S
    Tricolored Heron    Egretta tricolor S
    Reddish Egret    Egretta rufescens S
    Cattle Egret    Bubulcus ibis P
    Green Heron    Butorides virescens P
    Black-crowned Night-Heron    Nycticorax nycticorax S
    Yellow-crowned Night-Heron    Nyctanassa violacea S
  • Ibises and Spoonbills (Threskiornithidae)
     SpeciesDistributionReview ListEvidence
    White Ibis    Eudocimus albus P
    Glossy Ibis    Plegadis falcinellus S
    White-faced Ibis    Plegadis chihi S
    Roseate Spoonbill    Platalea ajaja S
  • New World Vultures (Cathartidae)
     SpeciesDistributionReview ListEvidence
    Black Vulture    Coragyps atratus P
    Turkey Vulture    Cathartes aura S
  • Ospreys (Pandionidae)
     SpeciesDistributionReview ListEvidence
    Osprey    Pandion haliaetus S
  • Hawks, Kites, Eagles, and Allies (Accipitridae)
     SpeciesDistributionReview ListEvidence
    White-tailed Kite    Elanus leucurus P
    Swallow-tailed Kite    Elanoides forficatus S
    Golden Eagle    Aquila chrysaetos S
    Northern Harrier    Circus cyaneus S
    Sharp-shinned Hawk    Accipiter striatus S
    Cooper's Hawk    Accipiter cooperii S
    American Goshawk    Accipiter atricapillus S
    Bald Eagle    Haliaeetus leucocephalus S
    Mississippi Kite    Ictinia mississippiensis P
    Common Black Hawk    Buteogallus anthracinus P
    Harris's Hawk    Parabuteo unicinctus P
    Variable Hawk    Geranoaetus polyosoma P
    Red-shouldered Hawk    Buteo lineatus S
    Broad-winged Hawk    Buteo platypterus S
    Swainson's Hawk    Buteo swainsoni S
    Zone-tailed Hawk    Buteo albonotatus P
    Red-tailed Hawk    Buteo jamaicensis S
    Rough-legged Hawk    Buteo lagopus S
    Ferruginous Hawk    Buteo regalis S
  • Barn Owls (Tytonidae)
     SpeciesDistributionReview ListEvidence
    Barn Owl    Tyto alba S
  • Typical Owls (Strigidae)
     SpeciesDistributionReview ListEvidence
    Flammulated Owl    Psiloscops flammeolus S
    Western Screech-Owl    Megascops kennicottii S
    Eastern Screech-Owl    Megascops asio S
    Great Horned Owl    Bubo virginianus S
    Snowy Owl    Bubo scandiacus S
    Northern Pygmy-Owl    Glaucidium gnoma S
    Burrowing Owl    Athene cunicularia S
    Spotted Owl    Strix occidentalis S
    Barred Owl    Strix varia S
    Long-eared Owl    Asio otus S
    Short-eared Owl    Asio flammeus S
    Boreal Owl    Aegolius funereus S
    Northern Saw-whet Owl    Aegolius acadicus S
  • Kingfishers (Alcedinidae)
     SpeciesDistributionReview ListEvidence
    Belted Kingfisher    Megaceryle alcyon S
  • Woodpeckers and Allies (Picidae)
     SpeciesDistributionReview ListEvidence
    Lewis's Woodpecker    Melanerpes lewis S
    Red-headed Woodpecker    Melanerpes erythrocephalus S
    Acorn Woodpecker    Melanerpes formicivorus P
    Red-bellied Woodpecker    Melanerpes carolinus S
    Williamson's Sapsucker    Sphyrapicus thyroideus S
    Yellow-bellied Sapsucker    Sphyrapicus varius S
    Red-naped Sapsucker    Sphyrapicus nuchalis P
    Red-breasted Sapsucker    Sphyrapicus ruber P
    American Three-toed Woodpecker    Picoides dorsalis S
    Downy Woodpecker    Picoides pubescens S
    Ladder-backed Woodpecker    Picoides scalaris S
    Hairy Woodpecker    Picoides villosus S
    Northern Flicker    Colaptes auratus S
  • Caracaras and Falcons (Falconidae)
     SpeciesDistributionReview ListEvidence
    Crested Caracara    Caracara plancus S
    American Kestrel    Falco sparverius S
    Merlin    Falco columbarius S
    Gyrfalcon    Falco rusticolus S
    Peregrine Falcon    Falco peregrinus S
    Prairie Falcon    Falco mexicanus S
  • Parakeets, Macaws, and Parrots (Psittacidae)
  • Lories, Lovebirds, and Australasian Parrots (Psittaculidae)
  • Becards, Tityras, and Allies (Tityridae)
  • Tyrant Flycatchers (Tyrannidae)
     SpeciesDistributionReview ListEvidence
    Dusky-capped Flycatcher    Myiarchus tuberculifer S
    Ash-throated Flycatcher    Myiarchus cinerascens S
    Great Crested Flycatcher    Myiarchus crinitus S
    Brown-crested Flycatcher    Myiarchus tyrannulus P
    Great Kiskadee    Pitangus sulphuratus P
    Sulphur-bellied Flycatcher    Myiodynastes luteiventris P
    Tropical Kingbird    Tyrannus melancholicus P
    Couch's Kingbird    Tyrannus couchii P
    Cassin's Kingbird    Tyrannus vociferans S
    Thick-billed Kingbird    Tyrannus crassirostris P
    Western Kingbird    Tyrannus verticalis S
    Eastern Kingbird    Tyrannus tyrannus S
    Scissor-tailed Flycatcher    Tyrannus forficatus S
    Fork-tailed Flycatcher    Tyrannus savana P
    Olive-sided Flycatcher    Contopus cooperi S
    Western Wood-Pewee    Contopus sordidulus S
    Eastern Wood-Pewee    Contopus virens S
    Yellow-bellied Flycatcher    Empidonax flaviventris P
    Acadian Flycatcher    Empidonax virescens P
    Alder Flycatcher    Empidonax alnorum S
    Willow Flycatcher    Empidonax traillii S
    Least Flycatcher    Empidonax minimus S
    Hammond's Flycatcher    Empidonax hammondii S
    Gray Flycatcher    Empidonax wrightii S
    Dusky Flycatcher    Empidonax oberholseri S
    Western Flycatcher    Empidonax difficilis S
    Buff-breasted Flycatcher    Empidonax fulvifrons D
    Black Phoebe    Sayornis nigricans P
    Eastern Phoebe    Sayornis phoebe S
    Say's Phoebe    Sayornis saya S
    Vermilion Flycatcher    Pyrocephalus rubinus S
  • Vireos (Vireonidae)
     SpeciesDistributionReview ListEvidence
    White-eyed Vireo    Vireo griseus P
    Bell's Vireo    Vireo bellii S
    Gray Vireo    Vireo vicinior S
    Yellow-throated Vireo    Vireo flavifrons P
    Cassin's Vireo    Vireo cassinii P
    Blue-headed Vireo    Vireo solitarius S
    Plumbeous Vireo    Vireo plumbeus S
    Philadelphia Vireo    Vireo philadelphicus S
    Warbling Vireo    Vireo gilvus S
    Red-eyed Vireo    Vireo olivaceus S
    Yellow-green Vireo    Vireo flavoviridis P
  • Shrikes (Laniidae)
     SpeciesDistributionReview ListEvidence
    Loggerhead Shrike    Lanius ludovicianus S
    Northern Shrike    Lanius excubitor S
  • Jays and Crows (Corvidae)
     SpeciesDistributionReview ListEvidence
    Canada Jay    Perisoreus canadensis S
    Pinyon Jay    Gymnorhinus cyanocephalus S
    Steller's Jay    Cyanocitta stelleri S
    Blue Jay    Cyanocitta cristata S
    Woodhouse's Scrub-Jay    Aphelocoma woodhouseii S
    Clark's Nutcracker    Nucifraga columbiana S
    Black-billed Magpie    Pica hudsonia S
    American Crow    Corvus brachyrhynchos S
    Chihuahuan Raven    Corvus cryptoleucus S
    Common Raven    Corvus corax S
  • Chickadees and Titmice (Paridae)
     SpeciesDistributionReview ListEvidence
    Black-capped Chickadee    Poecile atricapillus S
    Mountain Chickadee    Poecile gambeli S
    Juniper Titmouse    Baeolophus ridgwayi S
  • Larks (Alaudidae)
     SpeciesDistributionReview ListEvidence
    Horned Lark    Eremophila alpestris S
  • Swallows (Hirundinidae)
     SpeciesDistributionReview ListEvidence
    Bank Swallow    Riparia riparia S
    Tree Swallow    Tachycineta bicolor S
    Violet-green Swallow    Tachycineta thalassina S
    Northern Rough-winged Swallow    Stelgidopteryx serripennis S
    Purple Martin    Progne subis S
    Barn Swallow    Hirundo rustica S
    Cliff Swallow    Petrochelidon pyrrhonota S
    Cave Swallow    Petrochelidon fulva P
  • Bushtits (Aegithalidae)
     SpeciesDistributionReview ListEvidence
    Bushtit    Psaltriparus minimus S
  • Kinglets (Regulidae)
     SpeciesDistributionReview ListEvidence
    Ruby-crowned Kinglet    Corthylio calendula S
    Golden-crowned Kinglet    Regulus satrapa S
  • Waxwings (Bombycillidae)
     SpeciesDistributionReview ListEvidence
    Bohemian Waxwing    Bombycilla garrulus S
    Cedar Waxwing    Bombycilla cedrorum S
  • Silky-flycatchers (Ptiliogonatidae)
     SpeciesDistributionReview ListEvidence
    Phainopepla    Phainopepla nitens P
  • Nuthatches (Sittidae)
     SpeciesDistributionReview ListEvidence
    Red-breasted Nuthatch    Sitta canadensis S
    White-breasted Nuthatch    Sitta carolinensis S
    Pygmy Nuthatch    Sitta pygmaea S
  • Creepers (Certhiidae)
     SpeciesDistributionReview ListEvidence
    Brown Creeper    Certhia americana S
  • Gnatcatchers (Polioptilidae)
     SpeciesDistributionReview ListEvidence
    Blue-gray Gnatcatcher    Polioptila caerulea S
  • Wrens (Troglodytidae)
     SpeciesDistributionReview ListEvidence
    Rock Wren    Salpinctes obsoletus S
    Canyon Wren    Catherpes mexicanus S
    Cactus Wren    Campylorhynchus brunneicapillus P
    Bewick's Wren    Thryomanes bewickii S
    Carolina Wren    Thryothorus ludovicianus S
    House Wren    Troglodytes aedon S
    Pacific Wren    Troglodytes pacificus P
    Winter Wren    Troglodytes hiemalis S
    Sedge Wren    Cistothorus stellaris S
    Marsh Wren    Cistothorus palustris S
  • Mockingbirds and Thrashers (Mimidae)
     SpeciesDistributionReview ListEvidence
    Gray Catbird    Dumetella carolinensis S
    Curve-billed Thrasher    Toxostoma curvirostre S
    Brown Thrasher    Toxostoma rufum S
    Long-billed Thrasher    Toxostoma longirostre