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

Eastern Meadowlark In West Gulf Coastal Plain / Ouachitas

All regionsWest Gulf Coastal Plain / OuachitasGrassland birds

Eastern Meadowlark in West Gulf Coastal Plain / Ouachitas has collapsed: down 93% on the route-weighted index since 1969.

-93%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 →
97Routes 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 →

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 →

Eastern Meadowlark has collapsed in West Gulf Coastal Plain / Ouachitas: down 93% on the route-weighted index since 1969.

Eastern Meadowlark In West Gulf Coastal Plain / Ouachitas Population Forecast

If the recent trend holds, Eastern Meadowlark in West Gulf Coastal Plain / Ouachitas is projected to fall about 100% by 2029 — from 2.5 in 2024 to a central estimate of 0.00 (95% range 0.00–11). A 5-year backtest shows a typical error of ±362.5%, with 100% of held-out values landing inside the 95% band.

-100%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 →
0.00Projected 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 →
0.00–1195% 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 →
±362.5%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, Eastern Meadowlark in West Gulf Coastal Plain / Ouachitas is projected to fall about 100% by 2029 — from 2.5 in 2024 to a central estimate of 0.00 (95% range 0.00–11). A 5-year backtest shows a typical error of ±362.5%, with 100% 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 →
20250.000.0011
20260.000.0011
20270.000.0011
20280.000.0011
20290.000.0011

Routes In West Gulf Coastal Plain / Ouachitas

Routes recording Eastern Meadowlark 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 →
MatoyOKLAHOMA1062000
PocolaOKLAHOMA872016
SandbluffOKLAHOMA651995
ChandlerTEXAS412004
IndianolaOKLAHOMA402024
FillmoreLOUISIANA381989
CanadianOKLAHOMA332017
PhillipsOKLAHOMA292008
CypressLOUISIANA281987
DerryLOUISIANA251989
StarkARKANSAS222024
Fort PolkLOUISIANA221975
NatchitochesLOUISIANA201991
De QuincyLOUISIANA182021
HavanaARKANSAS162021
McalesterOKLAHOMA161991
Coal HillARKANSAS122023
CartervilleLOUISIANA121992
Chandler 2TEXAS122024
EastonLOUISIANA101990
De RidderLOUISIANA102019
Mer RougeLOUISIANA102008
BlancoOKLAHOMA92016
ManyLOUISIANA71992
IvanLOUISIANA62013

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