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Species · BCR 25 · BBS 2025 Release · 1966–2024

Warbling Vireo In West Gulf Coastal Plain / Ouachitas

All regionsWest Gulf Coastal Plain / OuachitasForest birds

Warbling Vireo in West Gulf Coastal Plain / Ouachitas has held roughly steady: down 7% on the route-weighted index since 1970.

-7%Since 1970TrendPercent 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 →
35Routes 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 →
46YearsYears 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 Warbling Vireo in West Gulf Coastal Plain / Ouachitas. See the full index history below.

Warbling Vireo In West Gulf Coastal Plain / Ouachitas Population Forecast

If the recent trend holds, Warbling Vireo in West Gulf Coastal Plain / Ouachitas is projected to rise about 83% by 2029 — from 0.06 in 2024 to a central estimate of 0.11 (95% range 0.01–0.20). A 5-year backtest shows a typical error of ±50.5%, with 80% of held-out values landing inside the 95% band.

+83%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 →
0.11Projected 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 →
0.01–0.2095% 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 →
±50.5%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, Warbling Vireo in West Gulf Coastal Plain / Ouachitas is projected to rise about 83% by 2029 — from 0.06 in 2024 to a central estimate of 0.11 (95% range 0.01–0.20). A 5-year backtest shows a typical error of ±50.5%, with 80% of held-out values landing inside the 95% band.19682029
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 →
20250.110.010.20
20260.110.010.20
20270.110.010.20
20280.110.010.20
20290.110.010.20

Routes In West Gulf Coastal Plain / Ouachitas

Routes recording Warbling Vireo in West Gulf Coastal Plain / Ouachitas.
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 →
RamseyARKANSAS41987
CanadianOKLAHOMA42015
Big CedarOKLAHOMA31998
DibollTEXAS31969
AthensTEXAS32012
SimsARKANSAS22023
Hatfield 2ARKANSAS22023
BlancoOKLAHOMA22016
PocolaOKLAHOMA22002
Town BluffTEXAS21990
Locust BayouARKANSAS12023
StampsARKANSAS11979
CrowsARKANSAS11972
PoyenARKANSAS12007
BlakelyARKANSAS11972
Coal HillARKANSAS12009
MassardARKANSAS12006
StephensARKANSAS12017
Poyen 2ARKANSAS12024
EastonLOUISIANA11976
De RidderLOUISIANA12002
DerryLOUISIANA11979
CypressLOUISIANA11972
ClayLOUISIANA11983
LongstreetLOUISIANA12004

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