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

Rose-breasted Grosbeak Population Trend in Nebraska

All statesForest birds

Rose-breasted Grosbeak in Nebraska has held roughly steady: down 5% on the route-weighted index since 1969.

-5%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 →
36Routes 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 →
58YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Rose-breasted Grosbeak 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 Rose-breasted Grosbeak in Nebraska. See the full index history below.

Rose-breasted Grosbeak Population Forecast in Nebraska

If the recent trend holds, Rose-breasted Grosbeak in Nebraska is projected to fall about 51% by 2030 — from 0.83 in 2025 to a central estimate of 0.41 (95% range 0.00–1.1). A 5-year backtest shows a typical error of ±63%, with 80% of held-out values landing inside the 95% band.

-51%Change 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 →
0.41Projected 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 →
0.00–1.195% 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 →
±63%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, Rose-breasted Grosbeak in Nebraska is projected to fall about 51% by 2030 — from 0.83 in 2025 to a central estimate of 0.41 (95% range 0.00–1.1). A 5-year backtest shows a typical error of ±63%, with 80% of held-out values landing inside the 95% band.19672030
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 →
20260.440.001.2
20270.430.001.1
20280.430.001.1
20290.420.001.1
20300.410.001.1

Rose-breasted Grosbeak Survey Routes in Nebraska

Routes recording Rose-breasted Grosbeak 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 →
Murdock820252019
Surprise720251968
Red Cloud720242018
Johnson620241967
Gretna620181968
Belvidere520251971
Lyons520252019
Thurston420251967
Gretna 2420252019
Julian320251969
Tilden320252019
Seward220191968
Sparta220251975
Midway220231970
Boelus220222022
Hampton220252019
Liberty 2220072004
Liberty120031967
Kenesaw120031975
Kearney120211972
Sumner120251987
Pine Ridge120222008
Bartley120182018
Irvington120251967
Richland120251971

Rose-breasted Grosbeak Population Trend in Other States

arkansasconnecticutgeorgiaillinoisindianaiowakansaskentuckymainemarylandmassachusettsmichiganminnesotamissourinew-hampshirenew-jerseynew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-dakotatennesseevermontvirginiawest-virginiawisconsinwyoming

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