BBS Trend maps.

These cover the period 1966 - 2010. Please send comments to .

Basic Information: trend maps
Detailed Information: trend maps

Click on the Species of Interest

Family: Gaviidae
Common Loon Gavia immer

Family: Podicipedidae
Pied-billed Grebe Podilymbus podiceps
Horned Grebe Podiceps auritus
Red-necked Grebe Podiceps grisegena
Eared Grebe Podiceps nigricollis
Western/Clark's Grebe Aechmophorus spp.

Family: Pelecanidae
American White Pelican Pelecanus erythrorhynchos
Brown Pelican Pelecanus occidentalis

Family: Phalacrocoracidae
Double-crest. Cormorant Phalacrocorax auritus

Family: Anhingidae
Anhinga Anhinga anhinga

Family: Ardeidae
American Bittern Botaurus lentiginosus
Least Bittern Ixobrychus exilis
Great Blue Heron Ardea herodias
Great Egret Ardea alba
Snowy Egret Egretta thula
Little Blue Heron Egretta caerulea
Tricolored Heron Egretta tricolor
Cattle Egret Bubulcus ibis
Green Heron Butorides virescens
Black-crn. Night-Heron Nycticorax nycticorax
Yellow-crn. Night-Heron Nycticorax violaceus

Family: Threskiornithidae
White Ibis Eudocimus albus
Glossy Ibis Plegadis falcinellus
White-faced Ibis Plegadis chihi
Roseate Spoonbill Platalea ajaja

Family: Ciconiidae
Wood Stork Mycteria americana

Family: Cathartidae
Black Vulture Coragyps atratus
Turkey Vulture Cathartes aura

Family: Anatidae
Black-bell. Whist.-Duck Dendrocygna autumnalis
Fulvous Whistling-Duck Dendrocygna bicolor
Canada Goose Branta canadensis
Mute Swan Cygnus olor
Wood Duck Aix sponsa
Gadwall Anas strepera
American Wigeon Anas americana
American Black Duck Anas rubripes
Mallard Anas platyrhynchos
Mottled Duck Anas fulvigula
Blue-winged Teal Anas discors
Cinnamon Teal Anas cyanoptera
Northern Shoveler Anas clypeata
Northern Pintail Anas acuta
Green-winged Teal Anas crecca
Canvasback Aythya valisineria
Redhead Aythya americana
Ring-necked Duck Aythya collaris
Lesser Scaup Aythya affinis
Bufflehead Bucephala albeola
Common Goldeneye Bucephala clangula
Barrow's Goldeneye Bucephala islandica
Hooded Merganser Lophodytes cucullatus
Common Merganser Mergus merganser
Red-breasted Merganser Mergus serrator
Ruddy Duck Oxyura jamaicensis

Family: Accipitridae
Osprey Pandion haliaetus
Swallow-tailed Kite Elanoides forficatus
White-tailed Kite Elanus leucurus
Mississippi Kite Ictinia mississippiensis
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
Golden Eagle Aquila chrysaetos

Family: Falconidae
Crested Caracara Caracara cheriway
American Kestrel Falco sparverius
Merlin Falco columbarius
Prairie Falcon Falco mexicanus

Family: Phasianidae
Chukar Alectoris chukar
Gray Partridge Perdix perdix
Ring-necked Pheasant Phasianus colchicus
Ruffed Grouse Bonasa umbellus
Greater Sage-Grouse Centrocercus urophasianus
Blue Grouse Dendragapus obscurus
Sharp-tailed Grouse Tympanuchus phasianellus
Greater Prairie-Chicken Tympanuchus cupido
Wild Turkey Meleagris gallopavo

Family: Odontophoridae
Mountain Quail Oreortyx pictus
Scaled Quail Callipepla squamata
California Quail Callipepla californica
Gambel's Quail Callipepla gambelii
Northern Bobwhite Colinus virginianus

Family: Rallidae
Clapper Rail Rallus longirostris
King Rail Rallus elegans
Virginia Rail Rallus limicola
Sora Porzana carolina
Purple Gallinule Porphyrio martinica
Common Moorhen Gallinula chloropus
American Coot Fulica americana

Family: Gruidae
Sandhill Crane Grus canadensis

Family: Charadriidae
Killdeer Charadrius vociferus
Mountain Plover Charadrius montanus

Family: Recurvirostridae
Black-necked Stilt Himantopus mexicanus
American Avocet Recurvirostra americana

Family: Scolopacidae
Greater Yellowlegs Tringa melanoleuca
Lesser Yellowlegs Tringa flavipes
Solitary Sandpiper Tringa solitaria
Willet Catoptrophorus semipalmatus
Spotted Sandpiper Actitis macularia
Upland Sandpiper Bartramia longicauda
Long-billed Curlew Numenius americanus
Marbled Godwit Limosa fedoa
Wilson's Snipe Gallinago delicata
American Woodcock Scolopax minor
Wilson's Phalarope Phalaropus tricolor

Family: Laridae
Laughing Gull Larus atricilla
Franklin's Gull Larus pipixcan
Ring-billed Gull Larus delawarensis
California Gull Larus californicus
Herring Gull Larus argentatus
Western Gull Larus occidentalis
Glaucous-winged Gull Larus glaucescens
Great black-backed Gull Larus marinus
Caspian Tern Sterna caspia
Royal Tern Sterna maxima
Common Tern Sterna hirundo
Forster's Tern Sterna forsteri
Least Tern Sterna antillarum
Black Tern Chlidonias niger
Black Skimmer Rhynchops niger

Family: Columbidae
Rock Pigeon Columba livia
Band-tailed Pigeon Patagidenas fasciata
White-winged Dove Zenaida asiatica
Mourning Dove Zenaida macroura
Inca Dove Columbina inca
Common Ground-Dove Columbina passerina

Family: Cucuclidae
Black-billed Cuckoo Coccyzus erythropthalmus
Yellow-billed Cuckoo Coccyzus americanus
Greater Roadrunner Geococcyx californianus

Family: Strigidae
Great Horned Owl Bubo virginianus
Burrowing Owl Speotyto cunicularia
Barred Owl Strix varia
Short-eared Owl Asio flammeus

Family: Caprimulgidae
Lesser Nighthawk Chordeiles acutipennis
Common Nighthawk Chordeiles minor
Common Poorwill Phalaenoptilus nuttallii
Chuck-will's-widow Caprimulgus carolinensis
Whip-poor-will Caprimulgus vociferus

Family: Apodidae
Black Swift Cypseloides niger
Chimney Swift Chaetura pelagica
Vaux's Swift Chaetura vauxi
White-throated Swift Aeronautes saxatalis

Family: Trochilidae
Ruby-thr. Hummingbird Archilochus colubris
Black-chin. Hummingbird Archilochus alexandri
Anna's Hummingbird Calypte anna
Costa's Hummingbird Calypte costae
Calliope Hummingbird Stellula calliope
Broad-tail. Hummingbird Selasphorus platycercus
Rufous Hummingbird Selasphorus rufus
Allen's Hummingbird Selasphorus sasin

Family: Alcedinidae
Belted Kingfisher Ceryle alcyon

Family: Picidae
Lewis's Woodpecker Melanerpes lewis
Red-headed Woodpecker Melanerpes erythrocephalus
Acorn Woodpecker Melanerpes formicivorus
Gila Woodpecker Melanerpes uropygialis
Golden-fronted Woodpkr Melanerpes aurifrons
Red-bellied Woodpecker Melanerpes carolinus
Williamson's Sapsucker Sphyrapicus thyroideus
Sapsucker (3 species) Sphyrapicus spp.
    Yellow-bell. Sapsucker Sphyrapicus varius
    Red-naped Sapsucker Sphyrapicus nuchalis
    Red-breasted Sapsucker Sphyrapicus ruber
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
Amer. Three-toed Woodpecker Picoides doralis
Black-backed Woodpecker Picoides arcticus
Northern Flicker Colaptes auratus
Gilded Flicker Colaptes chrysoides
Pileated Woodpecker Dryocopus pileatus

Family: Tyrannidae
Olive-sided Flycatcher Contopus cooperi
Western Wood-Pewee Contopus sordidulus
Eastern Wood-Pewee Contopus virens
Yellow-bell. Flycatcher Empidonax flaviventris
Acadian Flycatcher Empidonax virescens
Willow/Alder Flycatcher Empidonax spp.
    Alder Flycatcher Empidonax alnorum
    Willow Flycatcher Empidonax traillii
Least Flycatcher Empidonax minimus
Hammond's Flycatcher Empidonax hammondii
Dusky Flycatcher Empidonax oberholseri
Gray Flycatcher Empidonax wrightii
Pac.-sl/Co. Flycatcher Empidonax spp.
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
Brown-crest. Flycatcher Myiarchus tyrannulus
Cassin's Kingbird Tyrannus vociferans
Western Kingbird Tyrannus verticalis
Eastern Kingbird Tyrannus tyrannus
Scissor-tail Flycatcher Tyrannus forficatus

Family: Laniidae
Loggerhead Shrike Lanius ludovicianus

Family: Vireonidae
White-eyed Vireo Vireo griseus
Bell's Vireo Vireo bellii
Gray Vireo Vireo vicinior
Yellow-throated Vireo Vireo flavifrons
Plumbeous Vireo Vireo plumbeus
Cassin's Vireo Vireo cassinii
Blue-headed Vireo Vireo solitarius
Hutton's Vireo Vireo huttoni
Warbling Vireo Vireo gilvus
Philadelphia Vireo Vireo philadelphicus
Red-eyed Vireo Vireo olivaceus

Family: Corvidae
Gray Jay Perisoreus canadensis
Steller's Jay Cyanocitta stelleri
Blue Jay Cyanocitta cristata
Western Scrub-Jay Aphelocoma californica
Pinyon Jay Gymnorhinus cyanocephalus
Clark's Nutcracker Nucifraga columbiana
Black-billed Magpie Pica hudsonia
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

Family: Alaudidae
Horned Lark Eremophila alpestris

Family: Hirundinidae
Purple Martin Progne subis
Tree Swallow Tachycineta bicolor
Violet-green Swallow Tachycineta thalassina
N. Rough-winged Swallow Stelgidopteryx serripennis
Bank Swallow Riparia riparia
Cliff Swallow Petrochelidon pyrrhonota
Cave Swallow Petrochelidon fulva
Barn Swallow Hirundo rustica

Family: Paridae
Carolina Chickadee Poecile carolinensis
Black-capped Chickadee Poecile atricapilla
Mountain Chickadee Poecile gambeli
Chestnut-bkd Chickadee Poecile rufescens
Boreal Chickadee Poecile hudsonica
Oak Titmouse Baeolophus inornatus
Juniper Titmouse Baeolophus ridgwayi
Tufted/Blk-crested Titmouse/ Baeolophus spp.

Family: Remizidae
Verdin Auriparus flaviceps

Family: Aegithalidae
Bushtit Psaltriparus minimus

Family: Sittidae
Red-breasted Nuthatch Sitta canadensis
White-breasted Nuthatch Sitta carolinensis
Pygmy Nuthatch Sitta pygmaea
Brown-headed Nuthatch Sitta pusilla

Family: Certhiidae
Brown Creeper Certhia americana

Family: Troglodytidae
Cactus Wren Campylorhynchus brunneicapillus
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

Family: Cinclidae
American Dipper Cinclus mexicanus

Family: Regulidae
Golden-crowned Kinglet Regulus satrapa
Ruby-crowned Kinglet Regulus calendula

Family: Sylviidae
Blue-gray Gnatcatcher Polioptila caerulea
Black-tailed Gnatcatcher Polioptila melanura

Family: Turdidae
Eastern Bluebird Sialia sialis
Western Bluebird Sialia mexicana
Mountain Bluebird Sialia currucoides
Townsend's Solitaire Myadestes townsendi
Veery Catharus fuscescens
Swainson's Thrush Catharus ustulatus
Hermit Thrush Catharus guttatus
Wood Thrush Hylocichla mustelina
American Robin Turdus migratorius
Varied Thrush Ixoreus naevius

Family: Timaliidae
Wrentit Chamaea fasciata

Family: Mimidae
Gray Catbird Dumetella carolinensis
Northern Mockingbird Mimus polyglottos
Sage Thrasher Oreoscoptes montanus
Brown Thrasher Toxostoma rufum
Bendire's Thrasher Toxostoma bendirei
Curve-billed Thrasher Toxostoma curvirostre
California Thrasher Toxostoma redivivum
Crissal Thrasher Toxostoma crissale
Le Conte's Thrasher Toxostoma lecontei

Family: Sturnidae
European Starling Sturnus vulgaris

Family: Motacillidae
Sprague's Pipit Anthus spragueii

Family: Bombycillidae
Cedar Waxwing Bombycilla cedrorum

Family: Ptilogonatidae
Phainopepla Phainopepla nitens

Family: Parulidae
Blue-winged Warbler Vermivora pinus
Golden-winged Warbler Vermivora chrysoptera
Tennessee Warbler Vermivora peregrina
Orange-crowned Warbler Vermivora celata
Nashville Warbler Vermivora ruficapilla
Virginia's Warbler Vermivora virginiae
Lucy's Warbler Vermivora luciae
Northern Parula Parula americana
Yellow Warbler Dendroica petechia
Chestnut-sided Warbler Dendroica pensylvanica
Magnolia Warbler Dendroica magnolia
Cape May Warbler Dendroica tigrina
Black-thr. blue Warbler Dendroica caerulescens
Yellow-rumped Warbler Dendroica coronata
Black-thr. Gray Warbler Dendroica nigrescens
Black-th. Green Warbler Dendroica virens
Townsend's Warbler Dendroica townsendi
Hermit Warbler Dendroica occidentalis
Blackburnian Warbler Dendroica fusca
Yellow-throated Warbler Dendroica dominica
Grace's Warbler Dendroica graciae
Pine Warbler Dendroica pinus
Prairie Warbler Dendroica discolor
Palm Warbler Dendroica palmarum
Bay-breasted Warbler Dendroica castanea
Blackpoll Warbler Dendroica striata
Cerulean Warbler Dendroica cerulea
Black-&-white Warbler Mniotilta varia
American Redstart Setophaga ruticilla
Prothonotary Warbler Protonotaria citrea
Worm-eating Warbler Helmitheros vermivorus
Swainson's Warbler Limnothlypis swainsonii
Ovenbird Seiurus aurocapillus
Northern Waterthrush Seiurus noveboracensis
Louisiana Waterthrush Seiurus motacilla
Kentucky Warbler Oporornis formosus
Connecticut Warbler Oporornis agilis
Mourning Warbler Oporornis philadelphia
MacGillivray's Warbler Oporornis tolmiei
Common Yellowthroat Geothlypis trichas
Hooded Warbler Wilsonia citrina
Wilson's Warbler Wilsonia pusilla
Canada Warbler Wilsonia canadensis
Yellow-breasted Chat Icteria virens

Family: Thraupidae
Hepatic Tanager Piranga flava
Summer Tanager Piranga rubra
Scarlet Tanager Piranga olivacea
Western Tanager Piranga ludoviciana

Family: Emberizidae
Olive Sparrow Arremonops rufivirgatus
Green-tailed Towhee Pipilo chlorurus
Spotted Towhee Pipilo maculatus
Eastern Towhee Pipilo erythrophthalmus
Canyon Towhee Pipilo fuscus
California Towhee Pipilo crissalis
Cassin's Sparrow Aimophila cassinii
Bachman's Sparrow Aimophila aestivalis
Rufous-crowned Sparrow Aimophila ruficeps
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
Baird's Sparrow Ammodramus bairdii
Henslow's Sparrow Ammodramus henslowii
Le Conte's Sparrow Ammodramus leconteii
Nelson's Shp-tl. Sparrow Ammodramus nelsoni
Fox Sparrow Passerella iliaca
Song Sparrow Melospiza melodia
Lincoln's Sparrow Melospiza lincolnii
Swamp Sparrow Melospiza georgiana
White-throated Sparrow Zonotrichia albicollis
White-crowned Sparrow Zonotrichia leucophrys
Dark-eyed Junco Junco hyemalis
McCown's Longspur Calcarius mccownii
Chestnut-col. Longspur Calcarius ornatus

Family: Cardinalidae
Northern Cardinal Cardinalis cardinalis
Pyrrhuloxia Cardinalis sinuatus
Rose-breasted Grosbeak Pheucticus ludovicianus
Black-headed Grosbeak Pheucticus melanocephalus
Blue Grosbeak Passerina caerulea
Lazuli Bunting Passerina amoena
Indigo Bunting Passerina cyanea
Painted Bunting Passerina ciris
Dickcissel Spiza americana

Family: Icteridae
Bobolink Dolichonyx oryzivorus
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
Boat-tailed Grackle Quiscalus major
Great-tailed Grackle Quiscalus mexicanus
Bronzed Cowbird Molothrus aeneus
Brown-headed Cowbird Molothrus ater
Orchard Oriole Icterus spurius
Hooded Oriole Icterus cucullatus
Baltimore Oriole Icterus galbula
Bullock's Oriole Icterus bullockii
Scott's Oriole Icterus parisorum

Family: Fringillidae
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
Pine Siskin Carduelis pinus
Lesser Goldfinch Carduelis psaltria
Lawrence's Goldfinch Carduelis lawrencei
American Goldfinch Carduelis tristis
Evening Grosbeak Coccothraustes vespertinus

Family: Passeridae
House Sparrow Passer domesticus