Species · Connecticut · BBS 2025 Release · 1966–2024
Northern Bobwhite Population Trend in Connecticut
Northern Bobwhite in Connecticut has collapsed: down 96% on the route-weighted index since 1968.
-96%Since 1968
11Routes In State
32Years
Notable Northern Bobwhite Trends in Connecticut
long arc declinecomputed index
Northern Bobwhite has collapsed in Connecticut: down 96% on the route-weighted index since 1968.
Northern Bobwhite Population Forecast in Connecticut
If the recent trend holds, Northern Bobwhite in Connecticut is projected to fall about 100% by 2006 — from 0.13 in 2001 to a central estimate of 0.00 (95% range 0.00–1.8). A 5-year backtest shows a typical error of ±277.3%, with 100% of held-out values landing inside the 95% band.
-100%Change by 2006
0.00Projected 2006 index
0.00–1.895% range
±277.3%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2002 | 0.04 | 0.00 | 1.8 |
| 2003 | 0.00 | 0.00 | 1.8 |
| 2004 | 0.00 | 0.00 | 1.8 |
| 2005 | 0.00 | 0.00 | 1.8 |
| 2006 | 0.00 | 0.00 | 1.8 |
Northern Bobwhite Survey Routes in Connecticut
| Uncasville | 3 | 1993 | 1973 |
| Mystic | 1 | 1995 | 1973 |
| E Hartland | 1 | 1990 | 1968 |
| Buckingham | 1 | 1991 | 1966 |
| Woodstock | 1 | 1994 | 1968 |
| Westbrook | 1 | 1989 | 1972 |
| Willimantic | 1 | 2001 | 1968 |
| No Woodbury | 1 | 1998 | 1972 |
| Danbury | 1 | 1975 | 1974 |
| Long Hill | 1 | 1974 | 1974 |
| Mid Haddam | 1 | 1995 | 1974 |
Northern Bobwhite Population Trend in Other States
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Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.