BirdAnalyst
Species · BCR 11 · BBS 2026 Release · 1966–2025

Trumpeter Swan In Prairie Potholes

All regionsPrairie PotholesWaterfowl

Trumpeter Swan in Prairie Potholes has surged: up 424% on the route-weighted index since 2010.

+424%Since 2010TrendPercent 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 →
14Routes In RegionSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
17YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable SignalsNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

No notable trend signals for Trumpeter Swan in Prairie Potholes. See the full index history below.

Routes In Prairie Potholes

Routes recording Trumpeter Swan in Prairie Potholes.
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 →
BeltramiMINNESOTA142025
DawsonMINNESOTA62021
ArlingtonMINNESOTA42023
WylieMINNESOTA42023
WashingtonIOWA22025
ScrantonIOWA22023
CourtlandMINNESOTA22023
ChokioMINNESOTA22024
GlyndonMINNESOTA22025
TenneyMINNESOTA22015
FairmontMINNESOTA22022
Lakota 2NORTH-DAKOTA22024
BurchinalIOWA12025
GluekMINNESOTA12014

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