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

Brewer's Sparrow Population Trend in Nebraska

All statesGeneralists

Brewer's Sparrow in Nebraska has fallen sharply: down 71% on the route-weighted index since 1969.

-71%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 →
5Routes 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 →
14YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Brewer's Sparrow 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 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 →

Brewer's Sparrow has fallen sharply in Nebraska: down 71% on the route-weighted index since 1969.

Brewer's Sparrow Survey Routes in Nebraska

Routes recording Brewer's Sparrow 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 →
Kimball220041997
Murray Lake220112011
Dalton219691969
Piester Lake119691969
Agate119751967

Brewer's Sparrow Population Trend in Other States

arizonacaliforniacoloradoidahokansasmontananevadanew-mexiconorth-dakotaoklahomaoregonsouth-dakotatexasutahwashingtonwyoming

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