BirdAnalyst
Species · BCR 24 · BBS 2025 Release · 1966–2024

Black-crowned Night Heron In Central Hardwoods

All regionsCentral HardwoodsWetland birds

Black-crowned Night Heron in Central Hardwoods has surged: up 239% on the route-weighted index since 1970.

+239%Since 1970
20Routes In Region
34Years

Notable Signals

long arc increasecomputed index

Black-crowned Night Heron has surged in Central Hardwoods: up 239% on the route-weighted index since 1970.

Forecast

If the recent trend holds, Black-crowned Night Heron in Central Hardwoods is projected to stay roughly flat through 2029, near 0.06 (95% range 0.00–0.15). A 5-year backtest shows a typical error of ±107.7%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2029
0.06Projected 2029 index
0.00–0.1595% range
±107.7%Backtest error
19662029
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected index95% low95% high
20250.060.000.14
20260.060.000.14
20270.060.000.15
20280.060.000.15
20290.060.000.15

Routes In Central Hardwoods

Routes recording Black-crowned Night Heron in Central Hardwoods.
Wheeler DamALABAMA72023
GeorgiaINDIANA42001
Valhermoso SpgsALABAMA31975
RoyaltonILLINOIS32023
DixieKENTUCKY22002
Belotes BendTENNESSEE22004
TrianaALABAMA12004
PulaskiILLINOIS11978
BelmontINDIANA11998
CorydonINDIANA11987
EvansvilleINDIANA11972
CantonKENTUCKY12016
MillionKENTUCKY11980
GatewoodKENTUCKY11975
ShelbyvilleKENTUCKY11976
MorganfieldKENTUCKY12024
Lebanon JunctionKENTUCKY12017
PulaskiMISSOURI12019
BaronOKLAHOMA11981
PeytonsvilleTENNESSEE12011

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