Species · Rhode Island · BBS 2025 Release · 1966–2024
Black-crowned Night Heron Population Trend in Rhode Island
Black-crowned Night Heron in Rhode Island has held roughly steady: down 8% on the route-weighted index since 1970.
-8%Since 1970
3Routes In State
17Years
Notable Black-crowned Night Heron Trends in Rhode Island
No notable trend signals for Black-crowned Night Heron in Rhode Island. See the full index history below.
Black-crowned Night Heron Survey Routes in Rhode Island
| Quonset Pt | 2 | 1991 | 1991 |
| Block Island | 1 | 2009 | 1988 |
| Sachuest Pt | 1 | 1990 | 1966 |
Black-crowned Night Heron Population Trend in Other States
alabamaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniasouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.