Species · Colorado · BBS 2025 Release · 1966–2024
Blue-winged Teal Population Trend in Colorado
Blue-winged Teal in Colorado has edged up: up 17% on the route-weighted index since 1972.
+17%Since 1972
65Routes In State
53Years
Notable Blue-winged Teal Trends in Colorado
No notable trend signals for Blue-winged Teal in Colorado. See the full index history below.
Blue-winged Teal Population Forecast in Colorado
If the recent trend holds, Blue-winged Teal in Colorado is projected to rise about 38% by 2029 — from 0.07 in 2024 to a central estimate of 0.10 (95% range 0.00–0.52). A 5-year backtest shows a typical error of ±150.6%, with 100% of held-out values landing inside the 95% band.
+38%Change by 2029
0.10Projected 2029 index
0.00–0.5295% range
±150.6%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.12 | 0.00 | 0.53 |
| 2026 | 0.11 | 0.00 | 0.53 |
| 2027 | 0.11 | 0.00 | 0.53 |
| 2028 | 0.10 | 0.00 | 0.52 |
| 2029 | 0.10 | 0.00 | 0.52 |
Blue-winged Teal Survey Routes in Colorado
| Briggsdale | 11 | 2023 | 1980 |
| Bethune | 10 | 2016 | 2016 |
| Haswell | 10 | 2006 | 1998 |
| Neegrande | 10 | 2006 | 1999 |
| Flagler | 8 | 2023 | 2007 |
| Pagosa Spgs | 6 | 1977 | 1976 |
| Edler | 5 | 2014 | 2014 |
| Waverly | 4 | 2018 | 1991 |
| Julesburg | 4 | 2021 | 2002 |
| Karval | 4 | 2019 | 2005 |
| Tincup | 4 | 2015 | 2015 |
| Arsenal | 3 | 1998 | 1991 |
| Pinneo | 3 | 1981 | 1981 |
| Kiowa | 3 | 2018 | 1973 |
| Lamar | 3 | 2001 | 1981 |
| Mica Butte | 3 | 1987 | 1982 |
| Walden | 3 | 2003 | 2001 |
| Fort Morgan | 3 | 2023 | 1998 |
| Prospect Val | 3 | 1999 | 1993 |
| Wet Mtns. | 3 | 2002 | 2002 |
| Angora | 3 | 2005 | 2005 |
| San Luis | 3 | 2010 | 1995 |
| Maybell | 2 | 1982 | 1971 |
| Fleming | 2 | 2003 | 1973 |
| Rush | 2 | 2021 | 2021 |
Blue-winged Teal Population Trend in Other States
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Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.