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

Virginia Rail Population Trend in Vermont

All statesWetland birds

Virginia Rail in Vermont has fallen sharply: down 64% on the route-weighted index since 1974.

-64%Since 1974TrendPercent 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 →
8Routes 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 →
16YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Virginia Rail Trends in VermontNotable 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 →

Virginia Rail has fallen sharply in Vermont: down 64% on the route-weighted index since 1974.

Virginia Rail Survey Routes in Vermont

Routes recording Virginia Rail in Vermont.
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 →
Marlboro119761976
Stratton119771967
Post Mills120221975
S Wallingfrd119831966
W Rutland120151967
East Calais119811976
Waterville119671967
Hinesburg119771977

Virginia Rail Population Trend in Other States

arizonacaliforniacoloradoconnecticutdelawareidahoillinoisindianaiowakansasmainemarylandmassachusettsmichiganminnesotamontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-dakotautahvirginiawashingtonwisconsinwyoming

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