BirdAnalyst
Species · BCR 11 · BBS 2025 Release · 1966–2024

Black-billed Cuckoo In Prairie Potholes

All regionsPrairie PotholesGeneralists

Black-billed Cuckoo in Prairie Potholes has collapsed: down 76% on the route-weighted index since 1969.

-76%Since 1969
98Routes In Region
57Years

Notable Signals

long arc declinecomputed index

Black-billed Cuckoo has collapsed in Prairie Potholes: down 76% on the route-weighted index since 1969.

Forecast

If the recent trend holds, Black-billed Cuckoo in Prairie Potholes is projected to fall about 100% by 2029 — from 0.15 in 2024 to a central estimate of 0.00 (95% range 0.00–1.1). A 5-year backtest shows a typical error of ±97.2%, with 100% of held-out values landing inside the 95% band.

-100%Change by 2029
0.00Projected 2029 index
0.00–1.195% range
±97.2%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
20250.000.001.1
20260.000.001.1
20270.000.001.1
20280.000.001.1
20290.000.001.1

Routes In Prairie Potholes

Routes recording Black-billed Cuckoo in Prairie Potholes.
Lake BronsonMINNESOTA102011
KemptonNORTH-DAKOTA82012
TenneyMINNESOTA61994
CondeSOUTH-DAKOTA51984
NashNORTH-DAKOTA42010
Redwood FallMINNESOTA31986
ForbesSOUTH-DAKOTA31987
ZearingIOWA21994
HartlandMINNESOTA22015
HuntleyMINNESOTA22015
ChokioMINNESOTA21984
BeltramiMINNESOTA22024
WalcottNORTH-DAKOTA22021
EmeradoNORTH-DAKOTA22024
CooperstownNORTH-DAKOTA22023
RollaNORTH-DAKOTA22002
NilesNORTH-DAKOTA22000
StanleyNORTH-DAKOTA22007
Douglas CrkNORTH-DAKOTA22010
Sheyenne LkNORTH-DAKOTA22010
Turtle MtnsNORTH-DAKOTA22019
HowardSOUTH-DAKOTA22013
White LakeSOUTH-DAKOTA21979
Crow CreekSOUTH-DAKOTA22008
GettysburgSOUTH-DAKOTA21971

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