BirdAnalyst
Species · BCR 17 · BBS 2025 Release · 1966–2024

Double-crested Cormorant In Badlands and Prairies

All regionsBadlands and PrairiesWetland birds

Double-crested Cormorant in Badlands and Prairies has surged: up 12× on the route-weighted index since 1969.

12×Since 1969
54Routes In Region
53Years

Notable Signals

long arc increasecomputed index

Double-crested Cormorant has surged in Badlands and Prairies: up 12× on the route-weighted index since 1969.

Forecast

If the recent trend holds, Double-crested Cormorant in Badlands and Prairies is projected to fall about 21% by 2029 — from 0.89 in 2024 to a central estimate of 0.70 (95% range 0.00–1.8). A 5-year backtest shows a typical error of ±52.9%, with 60% of held-out values landing inside the 95% band.

-21%Change by 2029
0.70Projected 2029 index
0.00–1.895% range
±52.9%Backtest error
19672029
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
20250.670.001.8
20260.680.001.8
20270.690.001.8
20280.690.001.8
20290.700.001.8

Routes In Badlands and Prairies

Routes recording Double-crested Cormorant in Badlands and Prairies.
Two DotMONTANA502024
Soda WellWYOMING171981
Oglala Nat. Grass.NEBRASKA122019
HayesSOUTH-DAKOTA92001
LacreekSOUTH-DAKOTA92022
CrookstonNEBRASKA72019
GolvaNORTH-DAKOTA62019
ArdmoreSOUTH-DAKOTA62015
RoundupMONTANA52019
Glen UllinNORTH-DAKOTA52000
ChamberlainSOUTH-DAKOTA52011
Ft ThompsonSOUTH-DAKOTA52011
ForsythMONTANA32004
St XavierMONTANA31993
Wheat BasinMONTANA32024
Ft YatesNORTH-DAKOTA31986
DickinsonNORTH-DAKOTA32004
LaplantSOUTH-DAKOTA31999
KayceeWYOMING32024
SavageMONTANA21987
AlbionMONTANA21993
TobaccoNORTH-DAKOTA21993
BowmanNORTH-DAKOTA22018
GorhamNORTH-DAKOTA22016
LodgepoleSOUTH-DAKOTA22019

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