BirdAnalyst
Species · BCR 26 · BBS 2025 Release · 1966–2024

Willow Flycatcher In Mississippi Alluvial Valley

All regionsMississippi Alluvial ValleyAerial insectivores

Willow Flycatcher in Mississippi Alluvial Valley has declined: down 47% on the route-weighted index since 1988.

-47%Since 1988TrendPercent 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 →
7Routes 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 →
14YearsYears 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 Willow Flycatcher in Mississippi Alluvial Valley. See the full index history below.

Routes In Mississippi Alluvial Valley

Routes recording Willow Flycatcher in Mississippi Alluvial Valley.
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 →
HughesARKANSAS11988
South BendARKANSAS12011
HarrisburgARKANSAS11982
SaffellARKANSAS12013
Cp GirardeauMISSOURI12019
TiptonvilleTENNESSEE12021
PawpawTENNESSEE12007

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.