Species · Maryland · BBS 2025 Release · 1966–2024
American Redstart Population Trend in Maryland
American Redstart in Maryland has surged: up 90% on the route-weighted index since 1968.
+90%Since 1968
64Routes In State
58Years
Notable American Redstart Trends in Maryland
long arc increasecomputed index
American Redstart has surged in Maryland: up 90% on the route-weighted index since 1968.
American Redstart Population Forecast in Maryland
If the recent trend holds, American Redstart in Maryland is projected to fall about 25% by 2029 — from 2.6 in 2024 to a central estimate of 1.9 (95% range 1.2–2.6). A 5-year backtest shows a typical error of ±25.8%, with 40% of held-out values landing inside the 95% band.
-25%Change by 2029
1.9Projected 2029 index
1.2–2.695% range
±25.8%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 1.8 | 1.1 | 2.5 |
| 2026 | 1.9 | 1.2 | 2.5 |
| 2027 | 1.9 | 1.2 | 2.6 |
| 2028 | 1.9 | 1.2 | 2.6 |
| 2029 | 1.9 | 1.2 | 2.6 |
American Redstart Survey Routes in Maryland
| Oldtown | 20 | 2024 | 1970 |
| Jennings | 15 | 2024 | 1996 |
| Green Ridge | 14 | 2024 | 1995 |
| Smithsburg | 11 | 2014 | 1967 |
| Wolfsville | 10 | 2024 | 1966 |
| Largo | 10 | 1981 | 1967 |
| Finzel | 9 | 2024 | 1995 |
| Steyer | 7 | 2024 | 1996 |
| Potomac Park | 5 | 2024 | 1970 |
| Floyd | 4 | 2024 | 1966 |
| Vienna | 4 | 1980 | 1976 |
| Earlton | 4 | 2024 | 2014 |
| Vindex | 3 | 2024 | 1966 |
| Tall Timbers | 3 | 1981 | 1969 |
| Pomonkey | 3 | 2024 | 1967 |
| Easton | 3 | 1982 | 1982 |
| Piney Grove | 3 | 2024 | 1999 |
| Berlin | 3 | 2024 | 1980 |
| Ijamsville | 3 | 2024 | 1986 |
| Silver Spg | 2 | 1977 | 1966 |
| Theodore | 2 | 2008 | 1968 |
| Elkton | 2 | 1997 | 1967 |
| Snow Hill | 2 | 1975 | 1966 |
| Jessup | 2 | 2024 | 2013 |
| Severna Park | 2 | 1989 | 1982 |
American Redstart Population Trend in Other States
alabamaalaskaarkansascoloradoconnecticutdelawaregeorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemassachusettsmichiganminnesotamississippimissourimontananebraskanew-hampshirenew-jerseynew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasvermontvirginiawashingtonwest-virginiawisconsinwyoming
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.