BirdAnalyst
Species · Georgia · BBS 2026 Release · 1966–2025

Black-bellied Whistling-Duck Population Trend in Georgia

All statesWaterfowl

Black-bellied Whistling-Duck in Georgia has surged: up 145% on the route-weighted index since 2014.

+145%Since 2014TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
15Routes In StateSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
13YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable Black-bellied Whistling-Duck Trends in GeorgiaNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

long arc increasecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →

Black-bellied Whistling-Duck has surged in Georgia: up 145% on the route-weighted index since 2014.

Black-bellied Whistling-Duck Survey Routes in Georgia

Routes recording Black-bellied Whistling-Duck in Georgia.
Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology →
Bethany3620252017
Newton520252013
Darien420192013
Stockton420212014
Ousley420252015
Philema420242014
Shiloh320242016
Colonels Island220112011
Glenmore220232023
Dover220252023
Henderson220242024
Jacksonboro120252025
Cotton120252018
Owensboro120192019
Boston120252014

Black-bellied Whistling-Duck Population Trend in Other States

alabamaarizonaarkansasfloridaillinoisindianalouisianamississippimissourinebraskanorth-carolinaoklahomasouth-carolinatennesseetexas

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14.