Population Tends - Estimates of Bird Population Change over Time
Information about trend analysis
Click on the Species of Interest:
Red-throated loon
Gavia stellata
Pacific loon
Gavia pacifica
Common loon
Gavia immer
Pied-billed grebe
Podilymbus podiceps
Horned grebe
Podiceps auritus
Red-necked grebe
Podiceps grisegena
Eared grebe
Podiceps nigricollis
Northern fulmar
Fulmarus glacialis
Northern gannet
Morus bassanus
American white pelican
Pelecanus erythrorhynchos
Brown pelican
Pelecanus occidentalis
Great cormorant
Phalacrocorax carbo
Double-crest. Cormorant
Phalacrocorax auritus
Olivaceous cormorant
Phalacrocorax brasilianus
Brandt's cormorant
Phalacrocorax penicillatus
Pelagic cormorant
Phalacrocorax pelagicus
Anhinga
Anhinga anhinga
Magnif. frigatebird
Fregata magnificens
American bittern
Botaurus lentiginosus
Least bittern
Ixobrychus exilis
Great blue heron
Ardea herodias
Great egret
Casmerodius albus
Snowy egret
Egretta thula
Little blue heron
Egretta caerulea
Tricolored heron
Egretta tricolor
Reddish egret
Egretta rufescens
Cattle egret
Bubulcus ibis
Green heron
Butorides virescens
Black-crn. night-heron
Nycticorax nycticorax
Yellow-crn. night-heron
Nycticorax violacus
White ibis
Eudocimus albus
Glossy ibis
Plegadis falcinellus
White-faced ibis
Plegadis chihi
Roseate spoonbill
Ajaia ajaja
Wood stork
Mycteria americana
Fulvous whistling-duck
Dendrocygna bicolor
Tundra swan
Cygnus columbianus
Trumpeter swan
Cygnus buccinator
Mute swan
Cygnus olor
Gr. white-fronted goose
Anser albifrons
Snow goose
Anser caerulescens
Ross' goose
Anser rossii
Atlantic brant
Branta bernicla
Canada goose
Branta canadensis
Wood duck
Aix sponsa
Green-winged teal
Anas crecca
American black duck
Anas rubripes
Mottled duck
Anas fulvigula
Mallard
Anas platyrhynchos
Northern pintail
Anas acuta
Blue-winged teal
Anas discors
Cinnamon teal
Anas cyanoptera
Northern shoveler
Anas clypeata
Gadwall
Anas strepera
Eurasian wigeon
Anas penelope
American wigeon
Anas americana
Canvasback
Aythya valisineria
Redhead
Aythya americana
Ring-necked duck
Aythya collaris
Greater scaup
Aythya marila
Lesser scaup
Aythya affinis
Common eider
Somateria mollissima
King eider
Somateria spectabilis
Harlequin duck
Histrionicus histrionicus
Oldsquaw
Clangula hyemalis
Black scoter
Melanitta nigra
Surf scoter
Melanitta perspicillata
White-winged scoter
Melanitta deglandi
Common goldeneye
Bucephala clangula
Barrow's goldeneye
Bucephala islandica
Bufflehead
Bucephala albeola
Hooded merganser
Lophodytes cucullatus
Common merganser
Mergus merganser
Red-breasted merganser
Mergus serrator
Ruddy duck
Oxyura jamaicensis
Black vulture
Coragyps atratus
Turkey vulture
Cathartes aura
Osprey
Pandion haliaetus
White-tailed kite
Elanus leucurus
Bald eagle
Haliaeetus leucocephalus
Northern harrier
Circus cyaneus
Sharp-shinned hawk
Accipiter striatus
Cooper's hawk
Accipiter cooperii
Northern goshawk
Accipiter gentilis
Harris' hawk
Parabuteo unicinctus
Red-shouldered hawk
Buteo lineatus
Broad-winged hawk
Buteo platypterus
Swainson's hawk
Buteo swainsoni
Red-tailed hawk
Buteo jamaicensis
Ferruginous hawk
Buteo regalis
Rough-legged hawk
Buteo lagopus
Golden eagle
Aquila chrysaetos
Crested caracara
Caracara plancus
American kestrel
Falco sparverius
Merlin
Falco columbarius
Peregrine falcon
Falco peregrinus
Gyrfalcon
Falco rusticolis
Prairie falcon
Falco mexicanus
Gray partridge
Perdix perdix
Chukar
Alectoris chukar
Ring-necked pheasant
Phasianus colchicus
Spruce grouse
Dendragapus canadensis
Blue grouse
Dendragapus obscurus
Ruffed grouse
Bonasa umbellus
Greater prairie-chicken
Tympanuchus cupido
Sharp-tailed grouse
Tympanuchus phasianellus
Wild turkey
Meleagris gallopavo
Northern bobwhite
Colinus virginianus
Scaled quail
Callipepla squamata
Gambel's quail
Callipepla gambelii
California quail
Callipepla californica
Mountain quail
Oreortyx pictus
Black rail
Laterallus jamaicensis
Clapper rail
Rallus longirostris
King rail
Rallus elegans
Virginia rail
Rallus limicola
Sora
Porzana carolina
Purple gallinule
Porphyrula martinica
Common moorhen
Gallinula chloropus
American coot
Fulica americana
Limpkin
Aramus guarauna
Sandhill crane
Grus canadensis
Black-bellied plover
Pluvalis squatarola
Lesser golden plover
Pluvalis dominica
Snowy plover
Charadrius nivosus
Wilson's plover
Charadrius wilsonia
Semipalmated plover
Charadrius semipalmatus
Piping plover
Charadrius melodus
Killdeer
Charadrius vociferus
American oystercatcher
Haematopus palliatus
Am. Black oystercatcher
Haematopus bachmani
Black-necked stilt
Himantopus mexicanus
American avocet
Recurvirostra americana
Greater yellowlegs
Tringa melanoleuca
Lesser yellowlegs
Tringa flavipes
Solitary sandpiper
Tringa solitaria
Willet
Catoptrophorus semipalmatus
Spotted sandpiper
Actitis macularia
Whimbrel
Numenius hudsonicus
Long-billed curlew
Numenius americanus
Marbled godwit
Limosa fedoa
Ruddy turnstone
Arenaria interpres
Black turnstone
Arenaria melanocephala
Surfbird
Aphriza virgata
Red knot
Calidris canutus
Sanderling
Calidris alba
Semipalmated sandpiper
Calidris pusilla
Western sandpiper
Calidris mauri
Least sandpiper
Calidris minutilla
Pectoral sandpiper
Calidris melanotos
Purple sandpiper
Calidris maritima
Dunlin
Calidris alpina
Stilt sandpiper
Micropalama himantopus
Short-billed dowitcher
Limnodromus griseus
Long-billed dowitcher
Limnodromus scolopaceus
Common snipe
Gallinago gallinago
American woodcock
Scolopax minor
Wilson's phalarope
Phalaropus tricolor
Red phalarope
Phalaropus fulicaria
Pomarine jaeger
Stercorarius pomarinus
Parasitic jaeger
Stercorarius parasiticus
Laughing gull
Larus atricilla
Franklin's gull
Larus pipixcan
Little gull
Larus minutus
Com. black-headed gull
Larus ridibundus
Bonaparte's gull
Larus philadelphia
Heermann's gull
Larus heermanni
Mew gull
Larus canus
Ring-billed gull
Larus delawarensis
California gull
Larus californicus
Herring gull
Larus argentatus
Iceland gull
Larus glaucoides
Lr. black-backed gull
Larus fuscus
Western gull
Larus occidentalis
Glaucous-winged gull
Larus glaucescens
Glaucous gull
Larus hyperboreus
Great black-backed gull
Larus marinus
Black-legged kittiwake
Rissa tridactyla
Gull-billed tern
Sterna nilotica
Caspian tern
Sterna caspia
Royal tern
Sterna maxima
Sandwich tern
Sterna sandvicensis
Common tern
Sterna hirundo
Forster's tern
Sterna forsteri
Black skimmer
Rhynchops niger
Dovekie
Alle alle
Common murre
Uria aalge
Thick-billed murre
Uria lomvia
Razorbill
Alca torda
Black guillemot
Cepphus grylle
Pigeon guillemot
Cepphus columba
Marbled murrelet
Brachyramphus marmoratus
Ancient murrelet
Synthliboramphus antiquus
Cassin's auklet
Ptychoramphus aleuticus
Rhinoceros auklet
Cerorhinca monocerata
Band-tailed pigeon
Columba fasciata
Ringed turtle dove
Streptopelia risoria
White-winged dove
Zenaida asiatica
Mourning dove
Zenaida macroura
Inca dove
Columbina inca
Common ground dove
Columbina passerina
Yellow-billed cuckoo
Coccyzus americanus
Greater roadrunner
Geococcyx californianus
Groove-billed ani
Crotophaga sulcirostris
Common barn-owl
Tyto alba
Eastern screech-owl
Otus asio
Western screech-owl
Otus kennicottii
Great horned owl
Bubo virginianus
Snowy owl
Nyctea scandiaca
Northern hawk-owl
Surnia ulula
Northern pygmy-owl
Glaucidium gnoma
Burrowing owl
Speotyto cunicularia
Spotted owl
Strix occidentalis
Barred owl
Strix varia
Great gray owl
Strix nebulosa
Long-eared owl
Asio otus
Short-eared owl
Asio flammeus
Northern saw-whet owl
Aegolius acadicus
Common poorwill
Phalaenoptilus nuttallii
Chuck-will's-widow
Caprimulgus carolinensis
Whip-poor-will
Caprimulgus vociferus
White-throated swift
Aeronautes saxatalis
Ruby-thr. hummingbird
Archilochus colubris
Black-chin. hummingbird
Archilochus alexandri
Anna's hummingbird
Calypte anna
Costa's hummingbird
Calypte costae
Rufous hummingbird
Selasphorus rufus
Belted kingfisher
Ceryle alcyon
Lewis' woodpecker
Melanerpes lewis
Red-headed woodpecker
Melanerpes erythrocephalus
Acorn woodpecker
Melanerpes formicivorus
Golden-fronted woodpkr
Melanerpes aurifrons
Red-bellied woodpecker
Melanerpes carolinus
Williamson's sapsucker
Sphyrapicus thyroideus
Ladder-back. woodpecker
Picoides scalaris
Nuttall's woodpecker
Picoides nuttallii
Downy woodpecker
Picoides pubescens
Hairy woodpecker
Picoides villosus
Red-cockaded woodpecker
Picoides borealis
White-headed woodpecker
Picoides albolarvatus
Three-toed woodpecker
Picoides tridactylus
Black-backed woodpecker
Picoides arcticus
Northern flicker
Colaptes auratus
Pileated woodpecker
Dryocopus pileatus
Gray flycatcher
Empidonax wrightii
Black phoebe
Sayornis nigricans
Eastern phoebe
Sayornis phoebe
Say's phoebe
Sayornis saya
Vermilion flycatcher
Pyrocephalus rubinus
Ash-throated flycatcher
Myiarchus cinerascens
Grt. crested flycatcher
Myiarchus crinitus
Cassin's kingbird
Tyrannus vociferans
Western kingbird
Tyrannus verticalis
Eastern kingbird
Tyrannus tyrannus
Scissor-tail flycatcher
Tyrannus forficatus
Horned lark
Eremophila alpestris
Tree swallow
Tachycineta bicolor
Violet-green swallow
Tachycineta thalassina
N. Rough-winged swallow
Stelgidopteryx serripennis
Barn swallow
Hirundo rustica
Gray jay
Perisoreus canadensis
Steller's jay
Cyanocitta stelleri
Blue jay
Cyanocitta cristata
Scrub jay
Aphelocoma coerulescens
Pinyon jay
Gymnorhinus cyanocephalus
Clark's nutcracker
Nucifraga columbiana
Black-billed magpie
Pica pica
Yellow-billed magpie
Pica nuttalli
American crow
Corvus brachyrhynchos
Northwestern crow
Corvus caurinus
Fish crow
Corvus ossifragus
Chihuahuan raven
Corvus cryptoleucus
Common raven
Corvus corax
Black-capped chickadee
Parus atricapillus
Carolina chickadee
Parus carolinensis
Mountain chickadee
Parus gambeli
Boreal chickadee
Parus hudsonicus
Chestnut-bkd chickadee
Parus rufescens
Plain titmouse
Parus inornatus
Tufted titmouse
Parus bicolor
Verdin
Auriparus flaviceps
Bushtit
Psaltriparus minimus
Red-breasted nuthatch
Sitta canadensis
White-breasted nuthatch
Sitta carolinensis
Pygmy nuthatch
Sitta pygmaea
Brown-headed nuthatch
Sitta pusilla
Brown creeper
Certhia americana
Cactus wren
Campylorhynchus brunneicapi
Rock wren
Salpinctes obsoletus
Canyon wren
Catherpes mexicanus
Carolina wren
Thryothorus ludovicianus
Bewick's wren
Thryomanes bewickii
House wren
Troglodytes aedon
Winter wren
Troglodytes troglodytes
Sedge wren
Cistothorus platensis
Marsh wren
Cistothorus palustris
American dipper
Cinclus mexicanus
Golden-crowned kinglet
Regulus satrapa
Ruby-crowned kinglet
Regulus calendula
Blue-gray gnatcatcher
Polioptila caerulea
Black-tail gnatcatcher
Polioptila melanura
Eastern bluebird
Sialia sialis
Western bluebird
Sialia mexicana
Mountain bluebird
Sialia currucoides
Townsend's solitaire
Myadestes townsendi
Gray-cheeked thrush
Catharus minimus
Swainson's thrush
Catharus ustulatus
Hermit thrush
Catharus guttatus
Wood thrush
Hylocichla mustelina
American robin
Turdus migratorius
Varied thrush
Ixoreus naevius
Wrentit
Chamaea fasciata
Gray catbird
Dumetella carolinensis
Northern mockingbird
Mimus polyglottos
Sage thrasher
Oreoscoptes montanus
Brown thrasher
Toxostoma rufum
Curve-billed thrasher
Toxostoma curvirostre
California thrasher
Toxostoma redivivum
Crissal thrasher
Toxostoma crissale
Water pipit
Anthus rubescens
Sprague's pipit
Anthus spragueii
Bohemian waxwing
Bombycilla garrulus
Cedar waxwing
Bombycilla cedrorum
Phainopepla
Phainopepla nitens
Northern shrike
Lanius excubitor
Loggerhead shrike
Lanius ludovicianus
European starling
Sturnus vulgaris
White-eyed vireo
Vireo griseus
Solitary vireo
Vireo solitarius
Yellow-throated vireo
Vireo flavifrons
Hutton's vireo
Vireo huttoni
Tennessee warbler
Vermivora peregrina
Orange-crowned warbler
Vermivora celata
Nashville warbler
Vermivora ruficapilla
Northern parula
Parula americana
Yellow warbler
Dendroica petechia
Magnolia warbler
Dendroica magnolia
Cape May warbler
Dendroica tigrina
Black-thr. blue warbler
Dendroica caerulescens
Black-thr. gray warbler
Dendroica nigrescens
Townsend's warbler
Dendroica townsendi
Hermit warbler
Dendroica occidentalis
Black-th. green warbler
Dendroica virens
Yellow-throated warbler
Dendroica dominica
Pine warbler
Dendroica pinus
Prairie warbler
Dendroica discolor
Palm warbler
Dendroica palmarum
Bay-breasted warbler
Dendroica castanea
Black-&-white warbler
Mniotilta varia
American redstart
Setophaga ruticilla
Ovenbird
Seiurus aurocapillus
Northern waterthrush
Seiurus noveboracensis
Common yellowthroat
Geothlypis trichas
Wilson's warbler
Wilsonia pusilla
Yellow-breasted chat
Icteria virens
Summer tanager
Piranga rubra
Western tanager
Piranga ludoviciana
Northern cardinal
Cardinalis cardinalis
Pyrrhuloxia
Cardinalis sinuatus
Rose-breasted grosbeak
Pheucticus ludovicianus
Black-headed grosbeak
Pheucticus melanocephalus
Blue grosbeak
Guiraca caerulea
Indigo bunting
Passerina cyanea
Painted bunting
Passerina ciris
Dickcissel
Spiza americana
Green-tailed towhee
Pipilo chlorurus
Rufous-sided towhee
Pipilo erythrophthalmus
Bachman's sparrow
Aimophila aestivalis
Cassin's sparrow
Aimophila cassinii
Rufous-crowned sparrow
Aimophila ruficeps
American tree sparrow
Spizella arborea
Chipping sparrow
Spizella passerina
Clay-colored sparrow
Spizella pallida
Brewer's sparrow
Spizella breweri
Field sparrow
Spizella pusilla
Black-chinned sparrow
Spizella atrogularis
Vesper sparrow
Pooecetes gramineus
Lark sparrow
Chondestes grammacus
Black-throated sparrow
Amphispiza bilineata
Sage sparrow
Amphispiza belli
Lark bunting
Calamospiza melanocorys
Savannah sparrow
Passerculus sandwichensis
Grasshopper sparrow
Ammodramus savannarum
Henslow's sparrow
Ammodramus henslowii
Le conte's sparrow
Ammodramus leconteii
Sharp-tailed sparrow
Ammodramus caudacutus
Seaside sparrow
Ammodramus maritimus
Fox sparrow
Passerella iliaca
Song sparrow
Melospiza melodia
Lincoln's sparrow
Melospiza lincolnii
Swamp sparrow
Melospiza georgiana
White-throated sparrow
Zonotrichia albicollis
Golden-crowned sparrow
Zonotrichia atricapilla
White-crowned sparrow
Zonotrichia leucophrys
Harris' sparrow
Zonotrichia querula
Slate-colored junco
Junco hyemalis
McCown's longspur
Calcarius mccownii
Lapland longspur
Calcarius lapponicus
Chestnut-col. longspur
Calcarius ornatus
Snow bunting
Plectrophenax nivalis
Red-winged blackbird
Agelaius phoeniceus
Tricolored blackbird
Agelaius tricolor
Eastern meadowlark
Sturnella magna
Western meadowlark
Sturnella neglecta
Yellow-head. blackbird
Xanthocephalus xanthocephalus
Rusty blackbird
Euphagus carolinus
Brewer's blackbird
Euphagus cyanocephalus
Common grackle
Quiscalus quiscula
Bronzed cowbird
Molothrus aeneus
Brown-headed cowbird
Molothrus ater
Hooded oriole
Icterus cucullatus
Baltimore oriole
Icterus galbula
Rosy finch
Leucosticte tephrocotis
Pine grosbeak
Pinicola enucleator
Purple finch
Carpodacus purpureus
Cassin's finch
Carpodacus cassinii
House finch
Carpodacus mexicanus
Red crossbill
Loxia curvirostra
White-winged crossbill
Loxia leucoptera
Common redpoll
Carduelis flammea
Hoary redpoll
Carduelis exilipes
Pine siskin
Carduelis pinus
Lesser goldfinch
Carduelis psaltria
Lawrence's goldfinch
Carduelis lawrencei
American goldfinch
Carduelis tristis
Evening grosbeak
Coccothraustes vespertinus
House sparrow
Passer domesticus