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

Hooded Warbler Population Trend in Delaware

All statesForest birds

Hooded Warbler in Delaware has edged down: down 24% on the route-weighted index since 1976.

-24%Since 1976TrendPercent 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 →
13YearsYears 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 DelawareNotable 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 Delaware. See the full index history below.

Hooded Warbler Survey Routes in Delaware

Routes recording Hooded Warbler in Delaware.
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 →
Wilmington119841984
Harrington120092009
Frankford119661966
Holleyville119871987
Lowes Xrds119781974
Blackbird120072007
Pepperbox120051998
Georgetown120051992

Hooded Warbler Population Trend in Other States

alabamaarkansasconnecticutfloridageorgiaillinoisindianakentuckylouisianamarylandmassachusettsmichiganmississippimissourinew-jerseynew-yorknorth-carolinaohiooklahomapennsylvaniarhode-islandsouth-carolinatennesseetexasvirginiawest-virginiawisconsin

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