BirdAnalyst
Species · BCR 19 · BBS 2025 Release · 1966–2024

Black-necked Stilt In Central Mixed Grass Prairie

All regionsCentral Mixed Grass PrairieShorebirds

Black-necked Stilt in Central Mixed Grass Prairie has held roughly steady: up 10% on the route-weighted index since 1987.

+10%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 →
10Routes 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 →
22YearsYears 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 Black-necked Stilt in Central Mixed Grass Prairie. See the full index history below.

Forecast

If the recent trend holds, Black-necked Stilt in Central Mixed Grass Prairie is projected to rise about 23% by 2029 — from 0.06 in 2024 to a central estimate of 0.07 (95% range 0.00–0.20). A 5-year backtest shows a typical error of ±60.6%, with 100% of held-out values landing inside the 95% band.

+23%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 →
0.07Projected 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 →
0.00–0.2095% 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 →
±60.6%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, Black-necked Stilt in Central Mixed Grass Prairie is projected to rise about 23% by 2029 — from 0.06 in 2024 to a central estimate of 0.07 (95% range 0.00–0.20). A 5-year backtest shows a typical error of ±60.6%, with 100% of held-out values landing inside the 95% band.19782029
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 →
20250.070.000.20
20260.070.000.20
20270.070.000.20
20280.070.000.20
20290.070.000.20

Routes In Central Mixed Grass Prairie

Routes recording Black-necked Stilt in Central Mixed Grass Prairie.
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 →
HackberryTEXAS102012
CharlieTEXAS32018
AlbertKANSAS22023
BerwetKANSAS22012
RotanTEXAS22024
HaskellTEXAS22024
BeaverOKLAHOMA11995
CoopertonOKLAHOMA12013
WeinertTEXAS11993
GirardTEXAS12000

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