BirdAnalyst
Species · BCR 21 · BBS 2025 Release · 1966–2024

Double-crested Cormorant In Oaks and Prairies

All regionsOaks and PrairiesWetland birds

Double-crested Cormorant in Oaks and Prairies has fallen sharply: down 52% on the route-weighted index since 1982.

-52%Since 1982
22Routes In Region
31Years

Notable Signals

long arc declinecomputed index

Double-crested Cormorant has fallen sharply in Oaks and Prairies: down 52% on the route-weighted index since 1982.

Forecast

If the recent trend holds, Double-crested Cormorant in Oaks and Prairies is projected to fall about 36% by 2029 — from 0.11 in 2024 to a central estimate of 0.07 (95% range 0.00–0.30). A 5-year backtest shows a typical error of ±98.7%, with 100% of held-out values landing inside the 95% band.

-36%Change by 2029
0.07Projected 2029 index
0.00–0.3095% range
±98.7%Backtest error
19742029
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
20250.070.000.30
20260.070.000.30
20270.070.000.30
20280.070.000.30
20290.070.000.30

Routes In Oaks and Prairies

Routes recording Double-crested Cormorant in Oaks and Prairies.
YoakumTEXAS42004
CayugaTEXAS32024
CampbelltonTEXAS22004
Massey LakeTEXAS22023
KosseTEXAS22016
FanninTEXAS22001
CreedmoreTEXAS22000
SchroederTEXAS11982
MuldoonTEXAS12003
Lone OakTEXAS12002
WeatherfordTEXAS12016
AlbanyTEXAS12022
Miller GroveTEXAS12010
SadlerTEXAS12014
HenriettaTEXAS12016
Thornton 2TEXAS12001
CarlosTEXAS12024
Blue RidgeTEXAS12000
Three RiversTEXAS12024
BonnerTEXAS12010
BrucevilleTEXAS12001
ComancheTEXAS12003

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