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Species · BCR 2 · BBS 2025 Release · 1966–2024

Rusty Blackbird In BCR 2

All regionsBCR 2Generalists

Rusty Blackbird in BCR 2 has collapsed: down 88% on the route-weighted index since 1987.

-88%Since 1987TrendPercent 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 →
13Routes In RegionSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
17YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable SignalsNotable 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 →

Rusty Blackbird has collapsed in BCR 2: down 88% on the route-weighted index since 1987.

Routes In BCR 2

Routes recording Rusty Blackbird in BCR 2.
Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology →
TupuknukALASKA101995
Kugarak (Short)ALASKA41987
Dillingham (Short)ALASKA31984
Togiak RiverALASKA22000
Gweek RiverALASKA22002
Selawik (Short)ALASKA21987
DillinghamALASKA12004
King SalmonALASKA12003
NomeALASKA12021
Salmon LakeALASKA12007
Kanektok RivALASKA12004
Goodnews BayALASKA12003
Kotzebue (Short)ALASKA11986

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