BirdAnalyst
Species · BCR 17 · BBS 2025 Release · 1966–2024

Plumbeous Vireo In Badlands and Prairies

All regionsBadlands and PrairiesForest birds

Plumbeous Vireo in Badlands and Prairies has edged up: up 11% on the route-weighted index since 1969.

+11%Since 1969TrendPercent 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 →
30Routes 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 →
57YearsYears 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 →

No notable trend signals for Plumbeous Vireo in Badlands and Prairies. See the full index history below.

Plumbeous Vireo In Badlands and Prairies Population Forecast

If the recent trend holds, Plumbeous Vireo in Badlands and Prairies is projected to rise about 282% by 2029 — from 0.23 in 2024 to a central estimate of 0.87 (95% range 0.36–1.4). A 5-year backtest shows a typical error of ±217.8%, with 20% of held-out values landing inside the 95% band.

+282%Change by 2029TrendPercent 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 →
0.87Projected 2029 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.36–1.495% range95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
±217.8%Backtest errorBacktest errorTypical error when we hold out the most recent years, forecast them, and compare to what actually happened. Lower means a more trustworthy projection.Full methodology →
If the recent trend holds, Plumbeous Vireo in Badlands and Prairies is projected to rise about 282% by 2029 — from 0.23 in 2024 to a central estimate of 0.87 (95% range 0.36–1.4). A 5-year backtest shows a typical error of ±217.8%, with 20% of held-out values landing inside the 95% band.19672029
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →95% low95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →95% high95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
20250.840.331.4
20260.850.331.4
20270.860.341.4
20280.870.351.4
20290.870.361.4

Routes In Badlands and Prairies

Routes recording Plumbeous Vireo in Badlands and Prairies.
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 →
Lightning CrSOUTH-DAKOTA102022
Roubaix LkSOUTH-DAKOTA51991
Silver CitySOUTH-DAKOTA52012
Elk MountainSOUTH-DAKOTA52004
Moskee 3WYOMING52024
CusterSOUTH-DAKOTA42024
NorbeckSOUTH-DAKOTA32002
HazelrodtSOUTH-DAKOTA32024
Wind Cave NpSOUTH-DAKOTA32018
BrandenbergMONTANA22015
Pleasant ValSOUTH-DAKOTA22024
Hill CitySOUTH-DAKOTA22013
MoskeeWYOMING22001
Moskee 2WYOMING22021
HighwoodMONTANA11974
BrusettMONTANA11983
JordanMONTANA12024
Reed PointMONTANA12018
Flatwillow 2MONTANA12017
Miles CityMONTANA12023
Bull Mtn.MONTANA12001
EnglewoodSOUTH-DAKOTA12006
Long DrawSOUTH-DAKOTA12024
RochfordSOUTH-DAKOTA12017
SundanceWYOMING12022

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