Species · Connecticut · BBS 2025 Release · 1966–2024
Magnolia Warbler Population Trend in Connecticut
Magnolia Warbler in Connecticut has edged up: up 20% on the route-weighted index since 1974.
+20%Since 1974
9Routes In State
36Years
Notable Magnolia Warbler Trends in Connecticut
No notable trend signals for Magnolia Warbler in Connecticut. See the full index history below.
Magnolia Warbler Population Forecast in Connecticut
If the recent trend holds, Magnolia Warbler in Connecticut is projected to rise about 121% by 2029 — from 0.11 in 2024 to a central estimate of 0.24 (95% range 0.00–0.53). A 5-year backtest shows a typical error of ±269.4%, with 100% of held-out values landing inside the 95% band.
+121%Change by 2029
0.24Projected 2029 index
0.00–0.5395% range
±269.4%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.24 | 0.00 | 0.52 |
| 2026 | 0.24 | 0.00 | 0.52 |
| 2027 | 0.24 | 0.00 | 0.52 |
| 2028 | 0.24 | 0.00 | 0.53 |
| 2029 | 0.24 | 0.00 | 0.53 |
Magnolia Warbler Survey Routes in Connecticut
| Sherman | 2 | 2011 | 1974 |
| E Hartland | 1 | 1990 | 1973 |
| Buckingham | 1 | 2002 | 1972 |
| Westbrook | 1 | 1980 | 1980 |
| No Woodbury | 1 | 2000 | 2000 |
| Woodstock 2 | 1 | 2021 | 2017 |
| Warren | 1 | 2011 | 1975 |
| New Hartford | 1 | 1987 | 1974 |
| Granby | 1 | 2024 | 2016 |
Magnolia Warbler Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.