Species · Arizona · BBS 2025 Release · 1966–2024
Black-bellied Whistling-Duck Population Trend in Arizona
Black-bellied Whistling-Duck in Arizona has fallen sharply: down 54% on the route-weighted index since 1988.
-54%Since 1988
4Routes In State
17Years
Notable Black-bellied Whistling-Duck Trends in Arizona
long arc declinecomputed index
Black-bellied Whistling-Duck has fallen sharply in Arizona: down 54% on the route-weighted index since 1988.
Black-bellied Whistling-Duck Survey Routes in Arizona
| Coolidge | 3 | 1975 | 1975 |
| Amado | 2 | 2014 | 2006 |
| Peña Blanca | 2 | 1997 | 1997 |
| Patagonia | 1 | 2012 | 1970 |
Black-bellied Whistling-Duck Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.