Guild · Connecticut · BBS 2025 Release · 1966–2024
Grassland Birds In Connecticut
5 species in this guild. As a group they are -85% since 1968.
Guild Signals
guild collapsecomputed index
Grassland birds as a group have collapsed in Connecticut, down 85% since 1968.
Forecast
If the recent trend holds, Grassland birds in Connecticut is projected to fall about 74% by 2029 — from 0.56 in 2024 to a central estimate of 0.14 (95% range 0.00–0.98). A 5-year backtest shows a typical error of ±78.3%, with 80% of held-out values landing inside the 95% band.
-74%Change by 2029
0.14Projected 2029 index
0.00–0.9895% range
±78.3%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.25 | 0.00 | 1.1 |
| 2026 | 0.23 | 0.00 | 1.1 |
| 2027 | 0.20 | 0.00 | 1.0 |
| 2028 | 0.17 | 0.00 | 1.0 |
| 2029 | 0.14 | 0.00 | 0.98 |
Member Species In Connecticut
| Eastern Meadowlark | Icteridae | -98% |
| Northern Bobwhite | Odontophoridae | -96% |
| Ring-necked Pheasant | Phasianidae | -94% |
| Bobolink | Icteridae | -72% |
| Savannah Sparrow | Passerellidae | -12% |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.