Species · Nebraska · BBS 2025 Release · 1966–2024
Black-billed Cuckoo Population Trend in Nebraska
Black-billed Cuckoo in Nebraska has collapsed: down 84% on the route-weighted index since 1969.
-84%Since 1969
32Routes In State
46Years
Notable Black-billed Cuckoo Trends in Nebraska
long arc declinecomputed index
Black-billed Cuckoo has collapsed in Nebraska: down 84% on the route-weighted index since 1969.
Black-billed Cuckoo Population Forecast in Nebraska
If the recent trend holds, Black-billed Cuckoo in Nebraska is projected to fall about 100% by 2026 — from 0.07 in 2021 to a central estimate of 0.00 (95% range 0.00–0.30). A 5-year backtest shows a typical error of ±135.6%, with 100% of held-out values landing inside the 95% band.
-100%Change by 2026
0.00Projected 2026 index
0.00–0.3095% range
±135.6%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2022 | 0.00 | 0.00 | 0.30 |
| 2023 | 0.00 | 0.00 | 0.30 |
| 2024 | 0.00 | 0.00 | 0.30 |
| 2025 | 0.00 | 0.00 | 0.30 |
| 2026 | 0.00 | 0.00 | 0.30 |
Black-billed Cuckoo Survey Routes in Nebraska
| Wheeler Co | 4 | 1999 | 1991 |
| Brady | 3 | 2005 | 1980 |
| Julian | 2 | 2002 | 1975 |
| Kenesaw | 2 | 1979 | 1972 |
| Gretna | 2 | 2006 | 1967 |
| Irvington | 2 | 1988 | 1972 |
| Richland | 2 | 1968 | 1968 |
| Table | 2 | 1980 | 1978 |
| Berwyn | 2 | 1993 | 1993 |
| Johnson | 1 | 2009 | 1974 |
| Liberty | 1 | 1987 | 1987 |
| Belvidere | 1 | 2008 | 1975 |
| Seward | 1 | 1983 | 1978 |
| Kearney | 1 | 1987 | 1968 |
| Sumner | 1 | 1987 | 1987 |
| Surprise | 1 | 2021 | 1978 |
| Bartlett | 1 | 1972 | 1968 |
| Petersburg | 1 | 2007 | 1970 |
| Almeria | 1 | 1972 | 1969 |
| Oconto | 1 | 1971 | 1971 |
| Paxton | 1 | 2008 | 2008 |
| Thurston | 1 | 2019 | 1969 |
| Sparta | 1 | 2021 | 1986 |
| Winside | 1 | 1997 | 1967 |
| Eagle Creek | 1 | 2000 | 1968 |
Black-billed Cuckoo Population Trend in Other States
alabamaarkansascoloradoconnecticutdelawaregeorgiaidahoillinoisindianaiowakansaskentuckymainemarylandmassachusettsmichiganminnesotamissourimontananew-hampshirenew-jerseynew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-dakotatennesseetexasvermontvirginiawest-virginiawisconsinwyoming
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.