Species · Maryland · BBS 2025 Release · 1966–2024
Common Nighthawk Population Trend in Maryland
Common Nighthawk in Maryland has declined: down 31% on the route-weighted index since 1969.
-31%Since 1969
8Routes In State
23Years
Notable Common Nighthawk Trends in Maryland
No notable trend signals for Common Nighthawk in Maryland. See the full index history below.
Common Nighthawk Population Forecast in Maryland
If the recent trend holds, Common Nighthawk in Maryland is projected to stay roughly flat through 2018, near 0.01 (95% range 0.00–0.07). A 5-year backtest shows a typical error of ±63.5%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2018
0.01Projected 2018 index
0.00–0.0795% range
±63.5%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2014 | 0.01 | 0.00 | 0.07 |
| 2015 | 0.01 | 0.00 | 0.07 |
| 2016 | 0.01 | 0.00 | 0.07 |
| 2017 | 0.01 | 0.00 | 0.07 |
| 2018 | 0.01 | 0.00 | 0.07 |
Common Nighthawk Survey Routes in Maryland
| Potomac Park | 2 | 1999 | 1970 |
| Harmony | 1 | 1978 | 1967 |
| Silver Spg | 1 | 1970 | 1970 |
| Honga | 1 | 1970 | 1969 |
| Madison | 1 | 2013 | 1966 |
| Cokesbury | 1 | 1972 | 1972 |
| Randallstown | 1 | 1972 | 1972 |
| Broomes Isl | 1 | 1967 | 1967 |
Common Nighthawk Population Trend in Other States
alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.