Species · Maryland · BBS 2025 Release · 1966–2024
Eastern Whip-poor-will Population Trend in Maryland
Eastern Whip-poor-will in Maryland has collapsed: down 83% on the route-weighted index since 1968.
-83%Since 1968
47Routes In State
58Years
Notable Eastern Whip-poor-will Trends in Maryland
long arc declinecomputed index
Eastern Whip-poor-will has collapsed in Maryland: down 83% on the route-weighted index since 1968.
Eastern Whip-poor-will Population Forecast in Maryland
If the recent trend holds, Eastern Whip-poor-will in Maryland is projected to fall about 100% by 2029 — from 0.19 in 2024 to a central estimate of 0.00 (95% range 0.00–0.29). A 5-year backtest shows a typical error of ±166.7%, with 60% of held-out values landing inside the 95% band.
-100%Change by 2029
0.00Projected 2029 index
0.00–0.2995% range
±166.7%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.00 | 0.00 | 0.29 |
| 2026 | 0.00 | 0.00 | 0.29 |
| 2027 | 0.00 | 0.00 | 0.29 |
| 2028 | 0.00 | 0.00 | 0.29 |
| 2029 | 0.00 | 0.00 | 0.29 |
Eastern Whip-poor-will Survey Routes in Maryland
| Walnut | 4 | 1999 | 1999 |
| Piney Grove | 4 | 2024 | 1995 |
| Theodore | 3 | 2002 | 1971 |
| Harmony | 3 | 2004 | 1966 |
| Fruitland | 3 | 1997 | 1967 |
| Green Ridge | 3 | 2024 | 1995 |
| Mt Nebo | 2 | 1970 | 1970 |
| Cheltenham | 2 | 2002 | 1966 |
| Northeast | 2 | 2009 | 1966 |
| Millington | 2 | 2005 | 1966 |
| Melitota | 2 | 1981 | 1981 |
| Easton | 2 | 1982 | 1982 |
| Accident 2 | 2 | 2023 | 2023 |
| Floyd | 1 | 1967 | 1967 |
| Vindex | 1 | 1977 | 1967 |
| Oldtown | 1 | 2024 | 1971 |
| Potomac Park | 1 | 2011 | 1971 |
| Norwood | 1 | 1974 | 1971 |
| Pleasant Val | 1 | 1969 | 1969 |
| Bachman Mill | 1 | 1981 | 1966 |
| Fowblesburg | 1 | 1975 | 1975 |
| Eklo | 1 | 1984 | 1970 |
| Randallstown | 1 | 1991 | 1991 |
| Berlin | 1 | 1981 | 1981 |
| Beltsville | 1 | 1993 | 1966 |
Eastern Whip-poor-will Population Trend in Other States
alabamaarkansasconnecticutdelawaregeorgiaillinoisindianaiowakansaskentuckymainemassachusettsmichiganminnesotamississippimissourinebraskanew-hampshirenew-jerseynew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasvermontvirginiawest-virginiawisconsin
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.