Species · New Hampshire · BBS 2025 Release · 1966–2024
Bobolink Population Trend in New Hampshire
Bobolink in New Hampshire has fallen sharply: down 63% on the route-weighted index since 1968.
-63%Since 1968
25Routes In State
58Years
Notable Bobolink Trends in New Hampshire
long arc declinecomputed index
Bobolink has fallen sharply in New Hampshire: down 62% on the route-weighted index since 1968.
Bobolink Population Forecast in New Hampshire
If the recent trend holds, Bobolink in New Hampshire is projected to stay roughly flat through 2029, near 2.1 (95% range 0.00–4.7). A 5-year backtest shows a typical error of ±14.8%, with 100% of held-out values landing inside the 95% band.
-10%Change by 2029
2.1Projected 2029 index
0.00–4.795% range
±14.8%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 2.6 | 0.00 | 5.3 |
| 2026 | 2.5 | 0.00 | 5.2 |
| 2027 | 2.4 | 0.00 | 5.0 |
| 2028 | 2.2 | 0.00 | 4.9 |
| 2029 | 2.1 | 0.00 | 4.7 |
Bobolink Survey Routes in New Hampshire
| Canterbury | 20 | 2024 | 1966 |
| Dixville Notch 2 | 16 | 2024 | 2018 |
| Dixvil Notch | 14 | 2017 | 1966 |
| Dover | 11 | 2023 | 1966 |
| Brentwood | 4 | 1998 | 1966 |
| Marlow | 4 | 2024 | 1966 |
| Fitzwilliam | 3 | 2023 | 1966 |
| Epsom | 3 | 2016 | 1966 |
| Jefferson Hl | 3 | 2022 | 1966 |
| Glen | 3 | 2023 | 1975 |
| Concord | 2 | 2022 | 1966 |
| Wilmot | 2 | 2024 | 1966 |
| Lempster | 2 | 2024 | 1966 |
| Franconia | 2 | 2022 | 1966 |
| Milan | 2 | 2024 | 1966 |
| Clarksville | 2 | 2024 | 1966 |
| Peterborough | 1 | 2013 | 1966 |
| Hopkinton | 1 | 2023 | 1966 |
| Strafford | 1 | 2016 | 1966 |
| Gilmantn I W | 1 | 2024 | 1969 |
| Mt Chocorua | 1 | 2024 | 1969 |
| Walpole | 1 | 2024 | 1967 |
| Crawford Not | 1 | 1972 | 1972 |
| Stratford | 1 | 2021 | 1966 |
| East Kingston | 1 | 2023 | 1999 |
Bobolink Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.