BirdAnalyst
Bird Conservation Region 5

Northern Pacific Rainforest

An ecological region spanning Alaska, California, Oregon, Washington, with 163 survey routes. BCRs are the natural unit for bird trends.

What Is Moving HereNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

long arc declinecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →

Herring Gull has collapsed in Northern Pacific Rainforest: down 98% on the route-weighted index since 1972.

long arc increasecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →

Eurasian Collared-Dove has surged in Northern Pacific Rainforest: up 91× on the route-weighted index since 2008.

long arc declinecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →

Common Murre has collapsed in Northern Pacific Rainforest: down 98% on the route-weighted index since 1974.

long arc increasecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →

Canada Goose has surged in Northern Pacific Rainforest: up 20× on the route-weighted index since 1974.

long arc declinecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →

Horned Lark has collapsed in Northern Pacific Rainforest: down 98% on the route-weighted index since 1974.

long arc increasecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →

Ruby-crowned Kinglet has surged in Northern Pacific Rainforest: up 16× on the route-weighted index since 1970.

How Guilds Are FaringGuild trendA mean-index aggregate across the species in this group — the structural direction of the guild, with individual-species noise smoothed out.Full methodology →

-76%

Shorebirds

9 species
-75%

Arid-land birds

4 species
-69%

Wetland birds

36 species
-63%

Aerial insectivores

23 species
-61%

Game birds

8 species
-59%

Grassland birds

8 species
-38%

Generalists

12 species
-30%

Birds of prey

20 species
-21%

Seabirds

4 species
-16%

Forest birds

89 species
-11%

Waterfowl

22 species

Survey Routes

Species By FamilyTrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →

Hawks, Eagles & Kites Accipitridae

American Goshawk -71%Bald Eagle +410%Cooper's Hawk -22%Golden Eagle -74%Northern Harrier +94%Red-shouldered Hawk +449%Red-tailed Hawk +1%Sharp-shinned Hawk -75%White-tailed Kite -63%

Bushtits Aegithalidae

Bushtit -63%

Larks Alaudidae

Horned Lark -98%

Kingfishers Alcedinidae

Belted Kingfisher -9%

Auks, Murres & Puffins Alcidae

Common Murre -98%Marbled Murrelet 26×Pigeon Guillemot -23%Rhinoceros Auklet -19%

Ducks, Geese & Waterfowl Anatidae

American Wigeon +61%Barrow's Goldeneye -2%Blue-winged Teal -46%Canada Goose 20×Cinnamon Teal +6%Common Goldeneye -15%Common Merganser -45%Gadwall +30%Greater Scaup -50%Green-winged Teal -39%Harlequin Duck +63%Hooded Merganser -74%Mallard +11%Northern Pintail +18%Northern Shoveler -25%Red-breasted Merganser -53%Ring-necked Duck +51%Ruddy Duck -63%Surf Scoter -35%Trumpeter Swan -40%White-winged Scoter -73%Wood Duck +8%

Swifts Apodidae

Black Swift -82%Vaux's Swift -37%White-throated Swift -76%

Herons, Egrets & Bitterns Ardeidae

American Bittern -68%Black-crowned Night Heron -6%Great Blue Heron -47%Great Egret +211%Green Heron -79%

Waxwings Bombycillidae

Cedar Waxwing -12%

Nightjars & Nighthawks Caprimulgidae

Common Nighthawk -76%

Cardinals & Grosbeaks Cardinalidae

Black-headed Grosbeak -2%Lazuli Bunting -47%Western Tanager -19%

New World Vultures Cathartidae

Turkey Vulture -13%

Treecreepers Certhiidae

Brown Creeper +286%

Plovers & Lapwings Charadriidae

Killdeer -73%

Dippers Cinclidae

American Dipper -9%

Pigeons & Doves Columbidae

Band-tailed Pigeon +7%Eurasian Collared-Dove 91×Mourning Dove -39%Rock Pigeon +39%

Crows, Jays & Magpies Corvidae

American Crow -11%Black-billed Magpie -67%California Scrub-Jay -6%Canada Jay +30%Clark's Nutcracker -46%Common Raven +48%Steller's Jay +28%

Falcons & Caracaras Falconidae

American Kestrel -36%Merlin +29%Peregrine Falcon -6%

Finches Fringillidae

American Goldfinch -57%Cassin's Finch -75%Evening Grosbeak -37%House Finch -50%Lesser Goldfinch -57%Pine Grosbeak -41%Pine Siskin -50%Purple Finch -66%Red Crossbill +80%White-winged Crossbill +14%

Loons Gaviidae

Common Loon +103%Pacific Loon -52%Red-throated Loon +58%

Cranes Gruidae

Sandhill Crane +297%

Oystercatchers Haematopodidae

Black Oystercatcher -30%

Swallows & Martins Hirundinidae

Bank Swallow +53%Barn Swallow -41%Cliff Swallow -82%Northern Rough-winged Swallow -58%Purple Martin -13%Tree Swallow -43%Violet-green Swallow -28%

Blackbirds & Orioles Icteridae

Brewer's Blackbird -73%Brown-headed Cowbird -76%Bullock's Oriole -54%Red-winged Blackbird +72%Rusty Blackbird -61%Tricolored Blackbird -7%Western Meadowlark -80%Yellow-headed Blackbird -40%

Yellow-breasted Chat Icteriidae

Yellow-breasted Chat -47%

Shrikes Laniidae

Loggerhead Shrike -56%

Gulls, Terns & Skimmers Laridae

Arctic Tern -63%Black-legged Kittiwake -81%Bonaparte's Gull +619%California Gull +66%Caspian Tern +117%Glaucous-winged Gull -53%Heermann's Gull -86%Herring Gull -98%Ring-billed Gull -94%Short-billed Gull -47%Western Gull -96%

Mockingbirds & Thrashers Mimidae

California Thrasher -90%Northern Mockingbird -83%

Wagtails & Pipits Motacillidae

American Pipit -65%

New World Quail Odontophoridae

California Quail -66%Mountain Quail -4%Northern Bobwhite -69%

Osprey Pandionidae

Osprey +202%

Chickadees & Titmice Paridae

Black-capped Chickadee -24%Boreal Chickadee -30%Chestnut-backed Chickadee +39%Mountain Chickadee -53%Oak Titmouse -50%

Wood-Warblers Parulidae

American Redstart -22%Black-throated Gray Warbler -32%Blackpoll Warbler -96%Common Yellowthroat +307%Hermit Warbler +57%MacGillivray's Warbler -47%Nashville Warbler +65%Northern Waterthrush +90%Orange-crowned Warbler -4%Townsend's Warbler 15×Wilson's Warbler -5%Yellow Warbler -48%

New World Sparrows Passerellidae

American Tree Sparrow -92%Bell's Sparrow +4%Brewer's Sparrow -60%California Towhee -82%Chipping Sparrow -85%Fox Sparrow +71%Golden-crowned Sparrow +72%Grasshopper Sparrow -65%Green-tailed Towhee -35%Lark Sparrow -95%Lincoln's Sparrow 14×Savannah Sparrow -6%Song Sparrow -21%Spotted Towhee -11%Vesper Sparrow -93%White-crowned Sparrow -34%

Old World Sparrows Passeridae

House Sparrow -38%

Pelicans Pelecanidae

Brown Pelican -41%

Cormorants Phalacrocoracidae

Brandt's Cormorant -76%Double-crested Cormorant +19%Pelagic Cormorant -91%

Pheasants, Grouse & Turkeys Phasianidae

Ring-necked Pheasant -94%Ruffed Grouse -84%Sooty Grouse +72%Wild Turkey 23×Willow Ptarmigan -19%

Woodpeckers Picidae

Acorn Woodpecker -21%American Three-toed Woodpecker +222%Black-backed Woodpecker -85%Downy Woodpecker -5%Hairy Woodpecker +16%Lewis's Woodpecker -63%Nuttall's Woodpecker -53%Pileated Woodpecker +17%Red-breasted Sapsucker +425%Red-naped Sapsucker -43%White-headed Woodpecker -25%Williamson's Sapsucker -34%

Grebes Podicipedidae

Horned Grebe -37%Pied-billed Grebe -44%Western Grebe -92%

Gnatcatchers Polioptilidae

Blue-gray Gnatcatcher -47%

Rails, Gallinules & Coots Rallidae

American Coot -75%Sora -6%Virginia Rail -47%

Kinglets Regulidae

Golden-crowned Kinglet +63%Ruby-crowned Kinglet 16×

Sandpipers & Allies Scolopacidae

Greater Yellowlegs +24%Least Sandpiper -34%Lesser Yellowlegs -86%Solitary Sandpiper -2%Spotted Sandpiper -57%Wilson's Phalarope -80%Wilson's Snipe +626%

Nuthatches Sittidae

Pygmy Nuthatch -63%Red-breasted Nuthatch +16%White-breasted Nuthatch -64%

Owls Strigidae

Barred Owl +379%Great Horned Owl +16%Northern Pygmy-Owl +34%Northern Saw-whet Owl -22%Western Screech-Owl -30%

Starlings & Mynas Sturnidae

European Starling +40%

Sylviid Warblers Sylviidae

Wrentit -74%

Hummingbirds Trochilidae

Allen's Hummingbird -92%Anna's Hummingbird +231%Calliope Hummingbird -62%Rufous Hummingbird -62%

Wrens Troglodytidae

Bewick's Wren +43%Canyon Wren -68%Marsh Wren +582%Northern House Wren -41%Pacific Wren +161%Rock Wren -92%

Thrushes Turdidae

American Robin -1%Gray-cheeked Thrush -82%Hermit Thrush +192%Mountain Bluebird -67%Swainson's Thrush -13%Townsend's Solitaire -34%Varied Thrush +366%Western Bluebird -52%

Tyrant Flycatchers Tyrannidae

Alder Flycatcher -21%Ash-throated Flycatcher -44%Black Phoebe +60%Dusky Flycatcher -40%Gray Flycatcher -77%Hammond's Flycatcher +127%Least Flycatcher +178%Olive-sided Flycatcher -77%Say's Phoebe -36%Western Kingbird -42%Western Wood-Pewee -49%Willow Flycatcher -66%

Barn-Owls Tytonidae

American Barn Owl -11%

Vireos Vireonidae

Cassin's Vireo -19%Hutton's Vireo +112%Red-eyed Vireo -90%Warbling Vireo +13%

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.