R C C C B Grouse Dusky (Dendragapus obscurus) (Dendragapus

(Phalaropus lobatus) (Phalaropus

R C C C B Grouse Ruffed (Bonasa umbellus) (Bonasa

(Recurvirostra americana) (Recurvirostra R R

R R Phalarope Red-necked

Avocet American

Grouse

(Phalaropus tricolor) (Phalaropus

(Himantopus mexicanus) (Himantopus U U U B

R R Phalarope Wilson’s

C C C B Duck Ruddy (Oxyura jamaicensis) (Oxyura Stilt Black-necked

(Tringa melanoleuca) (Tringa

U U (Mergus serrator) (Mergus Stilts & Avocets & Stilts

Yellowlegs Greater U U

Merganser Red-breasted

C C C B Crane Sandhill

(Antigone canadensis) (Antigone U U U Willet (Tringa semipalmata) (Tringa

(Mergus merganser) (Mergus

C C C C B

Merganser Common

U A A A B Coot American (Fulica americana) (Fulica R R R Yellowlegs Lesser (Tringa flavipes) (Tringa

(Lophodytes cucullatus) (Lophodytes

O R O R B

C C C B Sora (Porzana carolina) (Porzana

R R Sandpiper Solitary (Tringa solitaria) (Tringa Merganser Hooded

R R R R B Rail Virginia (Rallus limicola) (Rallus (Bucephala islandica) (Bucephala

C C C B Sandpiper Spotted (Actitis macularius) (Actitis

A A A A B

Goldeneye Barrow’s

Cranes & Coots, Rails,

R C C C B Snipe Wilson’s (Gallinago delicata) (Gallinago

(Bucephala clangula) (Bucephala

C C

Goldeneye Common (Selasphorus calliope) (Selasphorus

(Limnodromus scolopaceus) (Limnodromus

R B

U U

Hummingbird Calliope

Dowitcher Long-billed

C C C C B Bufflehead (Bucephala albeola) (Bucephala

(Selasphorus rufus) (Selasphorus

(Limnodromus griseus) (Limnodromus

R B

(Histrionicus histrionicus) (Histrionicus

R R

Hummingbird Rufous

U U U B Dowitcher Short-billed

Duck Harlequin

(Selasphorus platycercus) (Selasphorus

R R Sandpiper Western

(Calidris mauri) (Calidris

R B O C C C B Scaup Lesser

(Aythya affinis) (Aythya

Hummingbird Broad-tailed

(Calidris pusilla) (Calidris

R R Scaup Greater (Aythya marila) (Aythya

(Aeronautes saxatalis) (Aeronautes R R

U U U B Sandpiper Semipalmated

Swift White-throated

O C C C B Duck Ring-necked (Aythya collaris) (Aythya

(Calidris melanotos) (Calidris

R R

Hummingbirds & Swifts

Sandpiper Pectoral U U U B Redhead (Aythya americana) (Aythya

(Chordeiles minor) (Chordeiles

(Calidris fuscicollis) (Calidris U U U B Canvasback (Aythya valisineria) (Aythya

C C B

R R

Nighthawk Common Sandpiper White-rumped

U C C C B Teal Green-winged (Anas crecca) (Anas

Nighthawks R R Sandpiper Least (Calidris minutilla) (Calidris

U C C C B Pintail Northern (Anas acuta) (Anas

R R R B Dove Mourning (Zenaida macroura) (Zenaida

U U Sandpiper Baird’s

(Calidris bairdii) (Calidris

A A A A B Mallard (Anas platyrhynchos) (Anas

(Streptopelia decaocto) (Streptopelia

R R Sanderling

(Calidris alba) (Calidris

R R R U C C C B Wigeon American

(Mareca americana) (Mareca Collared-Dove *Eurasian

R R Turnstone Ruddy (Arenaria interpres) (Arenaria U C C C B Gadwall (Mareca strepera) (Mareca

U U U U B Pigeon *Rock (Columba livia) (Columba

O C C C B Shoveler Northern (Spatula clypeata) (Spatula

R R Godwit Marbled (Limosa fedoa) (Limosa

Pigeons & Doves & Pigeons

C C C B Teal Cinnamon (Spatula cyanoptera) (Spatula

(Numenius americanus) (Numenius

(Aechmophorus clarkii) (Aechmophorus R R R B

R R R

Curlew Long-billed

Grebe Clark’s O U U U B Teal Blue-winged (Spatula discors) (Spatula

(Bartramia longicauda) (Bartramia

(Aechmophorus occidentalis) (Aechmophorus R R R R R Duck Wood (Aix sponsa) (Aix

R R R b Sandpiper Upland

Grebe Western

U U Swan Tundra (Cygnus columbianus) (Cygnus

Sandpipers & Allies & Sandpipers

U U U B Grebe Eared (Podiceps nigricollis) (Podiceps

(Cygnus buccinator) (Cygnus

C U U U B

(Charadrius semipalmatus) (Charadrius

(Podiceps grisegena) (Podiceps Swan Trumpeter

R R

R R R B

Plover Semipalmated Grebe Red-necked

C A A A B Goose Canada (Branta canadensis) (Branta

U C C C B Killdeer (Charadrius vociferus) (Charadrius R O R B Grebe Horned (Podiceps auritus) (Podiceps

R R R Goose Ross’s (Anser rossii) (Anser

(Pluvialis squatarola) (Pluvialis (Podilymbus podiceps) (Podilymbus

R R O C C C B

R R Goose Snow (Anser caerulescens) (Anser Plover Black-bellied Grebe Pied-billed

Ducks & Swans Geese, Plovers Plovers Grebes

W F S Sp W F S Sp W F S Sp B/b B/b B/b

Season Season Season

Using this checklist Accidental and vagrant species The species listed below are accidental, vagrant, or * Indicates non-native species. species with few observations. Please document any observations of accidental and vagrant species and any species not on this bird checklist online at Breeding status https://www.nps.gov/yell/learn/wildlife-sightings. (B) Breeding: Confirmed as breeding in htm. Please include a detailed description of the Yellowstone including historic breeding. bird, its behavior, location and date of observation, (b) Unconfirmed breeding: Suspected of breed- and a photo if possible. ing, but not confirmed by eggs or young. Greater White-fronted Goose, Cackling Goose, Whooper Swan, Eurasian Wigeon, Surf Scoter, Seasons White-winged Scoter, Long-tailed Duck, *Chukar, (Sp) Spring: mid-March–early June *Gray Partridge, Wild Turkey, Band-tailed Pigeon, (S) Summer: early June–mid-August Black-billed Cuckoo, Yellow Rail, Whooping Birds of Yellowstone (F) Fall: mid-August–November Crane, Sabine’s Gull, Mew Gull, Black Tern, Arctic (W) Winter: December–mid-March Tern, Pacific Loon, American Bittern, Great Egret, Snowy Egret, Tricolored Heron, Cattle Egret, Abundance Categories Green Heron, Red-shouldered Hawk, Flammulated Yellowstone National Park offers birds an array of (A) Abundant: Found in moderate to large num- Owl, Western Screech Owl, Snowy Owl, Burrowing Owl, Crested Caracara, Ash-throated Flycatcher, habitat types: lower elevation sagebrush-grasslands bers and easily found in appropriate habitat. Scissor-tailed Flycatcher, Least Flycatcher, Say’s and riparian-willow communities, mid-elevation (C) Common: Found in moderate numbers and Phoebe, Cassin’s Vireo, Plumbeous Vireo, Red- forests of lodgepole pines and other conifers, high usually easy to find in appropriate habitat. eyed Vireo, Pygmy Nuthatch, Canyon Wren, Blue- elevation alpine meadows and whitebark pine for- (U) Uncommon: Found in small numbers and usu- gray Gnatcatcher, Veery, Varied Thrush, Lesser ests. The park’s signature geyser basins and areas of ally, but not always, found with some effort in Goldfinch, Lapland Longspur, McCown’s Longspur, thermal features also provide habitat for birds year- appropriate habitat. Black-throated Sparrow, Lark Bunting, Clay- round. Consequently, a diversity of birds occurs in (R) Rare: Occurs annually in very small numbers or colored Sparrow, Harris’s Sparrow, White-throated the park, especially during migration and summer. in a very restricted habitat. Difficult to find. Sparrow, Sagebrush Sparrow, Swamp Sparrow, (O) Occasional: Occurs in some years, but not Yellow-breasted Chat, Bobolink, Rusty Blackbird, This checklist follows the American Ornithological every year. Common Grackle, Ovenbird, Prothonotary Society, Checklist of North American Birds, and was Warbler, Hooded Warbler, Cape May Warbler, revised in May, 2020. Bird species that are acciden- Chestnut-sided Warbler, Black-throated Gray tal, vagrant, and those with few verified observa- Reminder: Appreciate Birds Warbler, Rose-breasted Grosbeak. tions have been grouped at the end of the checklist. RESPONSIBLY and RESPECTFULLY Some species listed in previous revisions lacked More Information: adequate documentation, so they were removed • The use of audio bird calls is illegal in the park. from the current checklist. This checklist was • Approaching on foot within 25 yards (23 m) Chesser, R. T., K. J. Burns, C. Cicero, J. L. Dunn, designed to help you determine the likelihood of of wildlife, including birds, is prohibited A. W. Kratter, I. J. Lovette, P. C. Rasmussen, J. observing various bird species. in Yellowstone. V. Remsen, Jr., D. F. Stotz, and K. Winker. 2019. Check-list of North American Birds (online). Thank you for your interest in the birds of All birds are sensitive to human disturbance, • American Ornithological Society. http://checklist.aou. Yellowstone. Your observations contribute to especially during the nesting season. org/taxa knowledge and conservation of birds found here. • Do not feed birds or any wildlife. —Yellowstone National Park Bird Program Feeding animals is prohibited in the park.

Yellowstone National Park P.O. Box 168 Yellowstone, WY 82190

www.nps.gov/yell Season Season Season B/b Sp S F W B/b Sp S F W B/b Sp S F W Gulls & Terns Willow Flycatcher (Empidonax traillii) B U U U Finches & Allies Bonaparte’s Gull Hammond’s Flycatcher Evening Grosbeak R R B U U U B O O O O (Chroicocephalus philadelphia) (Empidonax hammondii) (Coccothraustes vespertinus) Dusky Flycatcher Franklin’s Gull (Leucophaeus pipixcan) R R R B C C C Pine Grosbeak (Pinicola enucleator) B U U U U (Empidonax oberholseri) Gray-crowned Rosy-Finch Ring-billed Gull (Larus delawarensis) C C C Cordilleran Flycatcher O O O R B R R R (Leucosticte tephrocotis) (Empidonax occidentalis) California Gull (Larus californicus) B C C C Black-rosy Finch (Leucosticte atrata) B U U U R Shrikes Herring Gull (Larus argentatus) R R House Finch (Haemorhous mexicanus) R R R R Loggerhead Shrike R R R Caspian Tern (Hydroprogne caspia) B R R R (Lanius ludovicianus) Cassin’s Finch (Haemorhous cassinii) B C C C R Common Redpoll (Acanthis flammea) R U Common Tern (Sterna hirundo) R R Northern Shrike (Lanius borealis) U U Red Crossbill (Loxia curvirostra) B U U U U Forster’s Tern (Sterna forsteri) B R R R Vireos White-winged Crossbill b R R R R Loons Warbling Vireo (Vireo gilvus) B C C C (Loxia leucoptera)

Common Loon (Gavia immer) B U U U Jays, Magpies, Crows, & Ravens Pine Siskin (Spinus pinus) B C C C R Cormorants Canada Jay (Perisoreus canadensis) B U U U U American Goldfinch (Spinus tristis) B R R R R Pinyon Jay Snow Buntings Double-crested Cormorant R R R R B U U U (Gymnorhinus cyanocephalus) (Phalacrocorax auritus) Snow Bunting (Plectrophenax nivalis) O Steller’s Jay (Cyanocitta stelleri) B U U U U Pelicans, Herons, & Ibises Sparrows Blue Jay (Cyanocitta cristata) R O American White Pelican (Pelecanus Grasshopper Sparrow B C C C O erythrorhynchos) Clark’s Nutcracker (Ammodramus savannarum) B A A A A (Nucifraga columbiana) Great Blue Heron (Ardea herodias) B C C C R Lark Sparrow O O O Black-billed Magpie (Pica hudsonia) B A A A A (Chondestes grammacus) Black-crowned Night-Heron R R R (Nycticorax nycticorax) American Crow Chipping Sparrow (Spizella passerina) B A A A B U U U (Corvus brachyrhynchos) White-faced Ibis (Plegadis chihi) R R Brewer’s Sparrow (Spizella breweri) B C C C Common Raven (Corvus corax) B A A A A Vultures Fox Sparrow (Passerella iliaca) B R R R Larks American Tree Sparrow Turkey Vulture (Cathartes aura) U U U U (Spizelloides arborea) Horned Lark (Eremophila alpestris) B U U U U Hawks, Eagles, & Allies Dark-eyed Junco (Junco hyemalis) B A A A O Swallows Osprey (Pandion haliaetus) B C C C White-crowned Sparrow B C C C Bank Swallow (Riparia riparia) B R U R (Zonotrichia leucophrys) Golden Eagle (Aquila chrysaetos) B U U U U Vesper Sparrow Tree Swallow (Tachycineta bicolor) B U C U B C C C Northern Harrier (Circus hudsonius) B U U U R (Pooecetes gramineus) Violet-green Swallow Sharp-shinned Hawk B U C U Savannah Sparrow B U U U R (Tachycineta thalassina) B C C C (Accipiter striatus) (Passerculus sandwichensis) Northern Rough-winged Swallow (Accipiter cooperii) B R U R Cooper’s Hawk B U U U R (Stelgidopteryx serripennis) Song Sparrow (Melospiza melodia) B C C C Northern Goshawk Lincoln’s Sparrow B U U U R Barn Swallow (Hirundo rustica) B R U R B C C C (Accipiter gentilis) (Melospiza lincolnii) Cliff Swallow Bald Eagle (Haliaeetus leucocephalus) B C C C C B U C U Green-tailed Towhee (Petrochelidon pyrrhonota) B U U U (Pipilo chlorurus) Broad-winged Hawk R R Chickadees, Nuthatches & Allies (Buteo platypterus) Spotted Towhee (Pipilo maculatus) B R R R Black-capped Chickadee Swainson’s Hawk (Buteo swainsoni) B U C C B U U U U Blackbirds & Allies (Poecile atricapillus) Red-tailed Hawk (Buteo jamaicensis) B C A C R Yellow-headed Blackbird Mountain Chickadee (Poecile gambeli) B A A A A B C C C (Xanthocephalus xanthocephalus) Rough-legged Hawk (Buteo lagopus) U U R Red-breasted Nuthatch B C C C C Western Meadowlark (Sitta canadensis) B C C C Ferruginous Hawk (Buteo regalis) U U (Sturnella neglecta) White-breasted Nuthatch Owls B U U U U Bullock’s Oriole (Icterus bullockii) B R R R (Sitta carolinensis) Great Horned Owl (Bubo virginianus) B C C C C Red-winged Blackbird (Certhia americana) B C C C O Brown Creeper B U U U U (Agelaius phoeniceus) Northern Pygmy-Owl B R R R U Wrens Brown-headed Cowbird (Glaucidium gnoma) B C C C (Molothrus ater) Great Gray Owl (Strix nebulosa) B U U U R Rock Wren (Salpinctes obsoletus) B U U U Brewer’s Blackbird B C C C Long-eared Owl (Asio otus) B R R R House Wren (Troglodytes aedon) B C C C (Euphagus cyanocephalus) Short-eared Owl (Asio flammeus) B R R R Marsh Wren (Cistothorus palustris) B R R R Warblers Northern Waterthrush Boreal Owl (Aegolius funereus) B R R R R Dippers b R R R (Parkesia noveboracensis) Northern Saw-whet Owl American Dipper (Cinclus mexicanus) B U U U U B R R R R Black-and-white Warbler (Mniotilta (Aegolius acadicus) R O R varia) Kingfishers Kinglets Tennessee Warbler Golden-crowned Kinglet R R (Megaceryle alcyon) B R U R R (Leiothlypis peregrina) Belted Kingfisher B U U U R (Regulus satrapa) Orange-crowned Warbler (Leiothlypis Woodpeckers & Allies Ruby-crowned Kinglet B U U U B A A A celata) (Regulus calendula) Lewis’s Woodpecker B R R R Nashville Warbler (Leiothlypis ruficapilla) R R (Melanerpes lewis) Thrushes MacGillivray’s Warbler Williamson’s Sapsucker B U U U B U U U Western Bluebird (Sialia mexicana) R R R (Geothlypis tolmiei) (Sphyrapicus thyroideus) Mountain Bluebird (Sialia currucoides) B C C C Common Yellowthroat (Geothlypis Red-naped Sapsucker B C C C B U U U trichas) (Sphyrapicus nuchalis) Townsend’s Solitaire B C C C C American Redstart (Setophaga ruticilla) B R R R American Three-toed Woodpecker (Myadestes townsendi) B U U U U (Picoides dorsalis) Swainson’s Thrush (Catharus ustulatus) B U U U Blackburnian Warbler (Setophaga fusca) R R Black-backed Woodpecker B R R R R Hermit Thrush (Catharus guttatus) B C C C Yellow Warbler (Setophaga petechia) B C C C (Picoides arcticus) American Robin (Turdus migratorius) B A A A U Blackpoll Warbler (Setophaga striata) R R Downy Woodpecker B U U U U Yellow-rumped Warbler (Setophaga (Dryobates pubescens) Catbirds & Thrashers B A A A coronata) Hairy Woodpecker (Dryobates villosus) B C C C C Gray Catbird (Dumetella carolinensis) B R U U Townsend’s Warbler R R Northern Flicker (Colaptes auratus) B C C C R (Setophaga townsendi) Sage Thrasher (Orescoptes montanus) B U U U Pileated Woodpecker (Dryocopus B R R R R Wilson’s Warbler (Cardellina pusilla) B U U U pileatus) Starlings Tanagers & Allies Falcons *European Starling (Sturnus vulgaris) B U U U R Western Tanager B C C C American Kestrel (Falco sparverius) B U U U R Waxwings (Piranga ludoviciana) Black-headed Grosbeak Merlin (Falco columbarius) R R Bohemian Waxwing b R R R C C (Pheucticus melanocephalus) (Bombycilla garrulus) Peregrine Falcon (Falco peregrinus) B U U U Cedar Waxwing Lazuli Bunting (Passerina amoena) B C C C B U U U U Prairie Falcon (Falco mexicanus) B U U U R (Bombycilla cedrorum) Flycatchers Old World Sparrows Western Kingbird R R R *House Sparrow (Passer domesticus) B C C C U (Tyrannus verticalis) Eastern Kingbird Pipits R R R (Tyrannus tyrannus) American Pipit (Anthus rubescens) B R R R Olive-sided Flycatcher B C C C (Contopus cooperi) Western Wood-Pewee B U U U (Contopus sordidulus) YELL 274 • 6/21