Species · Vermont · BBS 2025 Release · 1966–2024
Ruby-crowned Kinglet Population Trend in Vermont
Ruby-crowned Kinglet in Vermont has collapsed: down 78% on the route-weighted index since 1971.
-78%Since 1971
15Routes In State
31Years
Notable Ruby-crowned Kinglet Trends in Vermont
long arc declinecomputed index
Ruby-crowned Kinglet has collapsed in Vermont: down 78% on the route-weighted index since 1971.
Ruby-crowned Kinglet Population Forecast in Vermont
If the recent trend holds, Ruby-crowned Kinglet in Vermont is projected to fall about 100% by 2029 — from 0.11 in 2024 to a central estimate of 0.00 (95% range 0.00–0.32). A 5-year backtest shows a typical error of ±285.2%, with 80% of held-out values landing inside the 95% band.
-100%Change by 2029
0.00Projected 2029 index
0.00–0.3295% range
±285.2%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.00 | 0.00 | 0.32 |
| 2026 | 0.00 | 0.00 | 0.32 |
| 2027 | 0.00 | 0.00 | 0.32 |
| 2028 | 0.00 | 0.00 | 0.32 |
| 2029 | 0.00 | 0.00 | 0.32 |
Ruby-crowned Kinglet Survey Routes in Vermont
| S Wallingfrd | 2 | 1981 | 1970 |
| St Johnsbury | 2 | 2024 | 1971 |
| Greensboro | 2 | 1992 | 1971 |
| North Pownal | 1 | 1976 | 1971 |
| Stratton | 1 | 1975 | 1975 |
| Landgrove | 1 | 2002 | 1980 |
| East Haven | 1 | 2014 | 1969 |
| Northfld Fls | 1 | 1996 | 1987 |
| Middlesex | 1 | 2003 | 1976 |
| East Calais | 1 | 1987 | 1971 |
| Hardwick | 1 | 2010 | 1971 |
| Fletcher | 1 | 1985 | 1985 |
| Waterville | 1 | 1974 | 1974 |
| Grand Isle | 1 | 1969 | 1969 |
| Stowe | 1 | 2002 | 1994 |
Ruby-crowned Kinglet Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.