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

Double-crested Cormorant In Central Hardwoods

All regionsCentral HardwoodsWetland birds

Double-crested Cormorant in Central Hardwoods has surged: up 45× on the route-weighted index since 1996.

45×Since 1996
27Routes In Region
27Years

Notable Signals

long arc increasecomputed index

Double-crested Cormorant has surged in Central Hardwoods: up 45× on the route-weighted index since 1996.

Forecast

If the recent trend holds, Double-crested Cormorant in Central Hardwoods is projected to rise about 457% by 2029 — from 0.11 in 2024 to a central estimate of 0.60 (95% range 0.00–1.4). A 5-year backtest shows a typical error of ±1377.5%, with 100% of held-out values landing inside the 95% band.

+457%Change by 2029
0.60Projected 2029 index
0.00–1.495% range
±1377.5%Backtest error
19912029
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
20250.520.001.4
20260.540.001.4
20270.560.001.4
20280.580.001.4
20290.600.001.4

Routes In Central Hardwoods

Routes recording Double-crested Cormorant in Central Hardwoods.
Wheeler DamALABAMA1022023
ElkmontALABAMA362014
KarnakILLINOIS242013
PleasurevillKENTUCKY112015
SanduskyILLINOIS72016
PeytonsvilleTENNESSEE72024
Valhermoso SpgsALABAMA32010
BelmontINDIANA32003
TrianaALABAMA22011
DelwoodILLINOIS22024
RoyaltonILLINOIS22002
TullahomaTENNESSEE22015
Valhermoso Spg 2ALABAMA12014
RussellARKANSAS12017
Brnt PrairieILLINOIS12016
PulaskiILLINOIS12024
BelknapILLINOIS12022
Beaverdam LkILLINOIS12023
PimentoINDIANA12021
CantonKENTUCKY12015
KeysburgKENTUCKY12012
RiverqueenKENTUCKY12018
PulaskiMISSOURI12022
CentertownMISSOURI11994
Pond CreekTENNESSEE12001

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