BirdAnalyst
Species · Nebraska · BBS 2026 Release · 1966–2025

Sedge Wren Population Trend in Nebraska

All statesGrassland birds

Sedge Wren in Nebraska has risen sharply: up 50% on the route-weighted index since 1983.

+50%Since 1983TrendPercent 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 →
16Routes In StateSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
34YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Sedge Wren Trends in NebraskaNotable 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 Sedge Wren in Nebraska. See the full index history below.

Sedge Wren Population Forecast in Nebraska

If the recent trend holds, Sedge Wren in Nebraska is projected to stay roughly flat through 2030, near 0.17 (95% range 0.00–0.37). A 5-year backtest shows a typical error of ±148.4%, with 80% of held-out values landing inside the 95% band.

n/aChange by 2030TrendPercent 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 →
0.17Projected 2030 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.00–0.3795% 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 →
±148.4%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, Sedge Wren in Nebraska is projected to stay roughly flat through 2030, near 0.17 (95% range 0.00–0.37). A 5-year backtest shows a typical error of ±148.4%, with 80% of held-out values landing inside the 95% band.19712030
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 →
20260.150.000.36
20270.160.000.36
20280.160.000.37
20290.160.000.37
20300.170.000.37

Sedge Wren Survey Routes in Nebraska

Routes recording Sedge Wren in Nebraska.
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 →
Murdock1320212019
Surprise220192016
Nenzel220222019
Ponca220192019
Julian119831982
Johnson120251995
Gordon120162016
Ringgold120052002
Kenesaw120192019
Mullen120172017
Richland120142014
Tilden120212021
Wheeler Co120242010
Thurston120191971
Sparta120251996
Lyons120252019

Sedge Wren Population Trend in Other States

connecticutdelawareillinoisindianaiowakansaskentuckymainemarylandmassachusettsmichiganminnesotamissourimontananew-hampshirenew-yorknorth-dakotaohiopennsylvaniasouth-dakotavermontvirginiawisconsin

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14.