BirdAnalyst
Species · New Jersey · BBS 2025 Release · 1966–2024

Yellow-crowned Night Heron Population Trend in New Jersey

All statesWetland birds

Yellow-crowned Night Heron in New Jersey has declined: down 29% on the route-weighted index since 1983.

-29%Since 1983TrendPercent 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 →
3Routes 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 Yellow-crowned Night Heron Trends in New JerseyNotable 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 Yellow-crowned Night Heron in New Jersey. See the full index history below.

Yellow-crowned Night Heron Survey Routes in New Jersey

Routes recording Yellow-crowned Night Heron in New Jersey.
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 →
Gillette120192019
Ocean City120241980
Villas119811981

Yellow-crowned Night Heron Population Trend in Other States

alabamaarkansasconnecticutdelawarefloridageorgiaillinoisindianakansaskentuckylouisianamarylandmississippimissourinew-yorknorth-carolinaohiooklahomapennsylvaniasouth-carolinatennesseetexasvirginiawest-virginia

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