BirdAnalyst
Species · Nebraska · BBS 2025 Release · 1966–2024

Sedge Wren Population Trend in Nebraska

All statesGrassland birds

Sedge Wren in Nebraska has surged: up 84% on the route-weighted index since 1983.

+84%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 →
33YearsYears 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 →

long arc increasecomputed 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 →

Sedge Wren has surged in Nebraska: up 84% on the route-weighted index since 1983.

Sedge Wren Population Forecast in Nebraska

If the recent trend holds, Sedge Wren in Nebraska is projected to stay roughly flat through 2029, near 0.18 (95% range 0.00–0.38). A 5-year backtest shows a typical error of ±75.7%, with 60% of held-out values landing inside the 95% band.

n/aChange 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 →
0.18Projected 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 →
0.00–0.3895% 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 →
±75.7%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 2029, near 0.18 (95% range 0.00–0.38). A 5-year backtest shows a typical error of ±75.7%, with 60% of held-out values landing inside the 95% band.19712029
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 →
20250.160.000.37
20260.170.000.37
20270.170.000.38
20280.170.000.38
20290.180.000.38

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
Sparta320211996
Surprise220192016
Nenzel220222019
Ponca220192019
Julian119831982
Johnson120231995
Gordon120162016
Ringgold120052002
Kenesaw120192019
Mullen120172017
Richland120142014
Tilden120212021
Wheeler Co120242010
Thurston120191971
Lyons120242019

Sedge Wren Population Trend in Other States

connecticutdelawareillinoisindianaiowakansaskentuckymainemarylandmassachusettsmichiganminnesotamissourimontananew-hampshirenew-yorknorth-dakotaohiopennsylvaniasouth-dakotavermontvirginiawisconsin

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