BirdAnalyst
Species · BCR 19 · BBS 2025 Release · 1966–2024

Black-billed Cuckoo In Central Mixed Grass Prairie

All regionsCentral Mixed Grass PrairieGeneralists

Black-billed Cuckoo in Central Mixed Grass Prairie has collapsed: down 92% on the route-weighted index since 1969.

-92%Since 1969
48Routes In Region
51Years

Notable Signals

long arc declinecomputed index

Black-billed Cuckoo has collapsed in Central Mixed Grass Prairie: down 92% on the route-weighted index since 1969.

Forecast

If the recent trend holds, Black-billed Cuckoo in Central Mixed Grass Prairie is projected to stay roughly flat through 2026, near 0.01 (95% range 0.00–0.14). A 5-year backtest shows a typical error of ±106.6%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2026
0.01Projected 2026 index
0.00–0.1495% range
±106.6%Backtest error
19672026
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
20220.020.000.15
20230.020.000.15
20240.020.000.15
20250.020.000.14
20260.010.000.14

Routes In Central Mixed Grass Prairie

Routes recording Black-billed Cuckoo in Central Mixed Grass Prairie.
CoatsKANSAS51984
GrayKANSAS51997
DaltonKANSAS42000
Wheeler CoNEBRASKA41999
BradyNEBRASKA32005
ChapmanKANSAS21976
AlbertKANSAS21994
BerwetKANSAS22007
GoesselKANSAS22007
KenesawNEBRASKA21979
TableNEBRASKA21980
BerwynNEBRASKA21993
ChildressTEXAS21988
WellingtonKANSAS11981
St JohnKANSAS12003
ColdwaterKANSAS11992
AshlandKANSAS12018
BuckeyeKANSAS12019
KanopolisKANSAS12016
HanoverKANSAS12009
HollenbergKANSAS12006
MinneapolisKANSAS12003
CovertKANSAS12016
JewellKANSAS12005
PhillipsburgKANSAS12001

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