BirdAnalyst
Species · BCR 17 · BBS 2025 Release · 1966–2024

Ruffed Grouse In Badlands and Prairies

All regionsBadlands and PrairiesGeneralists

Ruffed Grouse in Badlands and Prairies has surged: up 82% on the route-weighted index since 1998.

+82%Since 1998TrendPercent 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 →
6Routes 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 →
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 SignalsNotable 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 →

Ruffed Grouse has surged in Badlands and Prairies: up 82% on the route-weighted index since 1998.

Routes In Badlands and Prairies

Routes recording Ruffed Grouse in Badlands and Prairies.
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 →
Maynard CouleeMONTANA42024
MoskeeWYOMING31980
Long DrawSOUTH-DAKOTA12014
NorbeckSOUTH-DAKOTA11998
SundanceWYOMING12024
Moskee 2WYOMING12011

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