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Species · Wisconsin · BBS 2026 Release · 1966–2025

Hooded Warbler Population Trend in Wisconsin

All statesForest birds

Hooded Warbler in Wisconsin has increased: up 25% on the route-weighted index since 2002.

+25%Since 2002TrendPercent 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 →
12Routes 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 →
12YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Hooded Warbler Trends in WisconsinNotable 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 Hooded Warbler in Wisconsin. See the full index history below.

Hooded Warbler Survey Routes in Wisconsin

Routes recording Hooded Warbler in Wisconsin.
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 →
Holland120062006
Hebron120252024
Paris120192019
Mukwonago 2120102006
Dresser120022002
Loraine120152015
Cumberland120092009
Cavour120102010
N Freedom120161997
Gresham120192019
Amberg120002000
Esdaile120052005

Hooded Warbler Population Trend in Other States

alabamaarkansasconnecticutdelawarefloridageorgiaillinoisindianakentuckylouisianamarylandmassachusettsmichiganmississippimissourinew-jerseynew-yorknorth-carolinaohiooklahomapennsylvaniarhode-islandsouth-carolinatennesseetexasvirginiawest-virginia

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