BirdAnalyst
Species · Indiana · BBS 2025 Release · 1966–2024

Alder Flycatcher Population Trend in Indiana

All statesAerial insectivores

Alder Flycatcher in Indiana has fallen sharply: down 53% on the route-weighted index since 1985.

-53%Since 1985
8Routes In State
22Years

Notable Alder Flycatcher Trends in Indiana

No notable trend signals for Alder Flycatcher in Indiana. See the full index history below.

Alder Flycatcher Population Forecast in Indiana

If the recent trend holds, Alder Flycatcher in Indiana is projected to stay roughly flat through 2027, near 0.04 (95% range 0.00–0.08). A 5-year backtest shows a typical error of ±109.8%, with 80% of held-out values landing inside the 95% band.

n/aChange by 2027
0.04Projected 2027 index
0.00–0.0895% range
±109.8%Backtest error
19752027
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected index95% low95% high
20230.040.000.08
20240.040.000.08
20250.040.000.08
20260.040.000.08
20270.040.000.08

Alder Flycatcher Survey Routes in Indiana

Routes recording Alder Flycatcher in Indiana.
South Bend119821982
Indiana Dune120141996
Columbia Cty119851985
Packertown119751975
Ellis120042004
Kankakee Sands120072007
Packertown 2120222010
Pimento120132013

Alder Flycatcher Population Trend in Other States

alaskaconnecticutidahoillinoisiowamainemarylandmassachusettsmichiganminnesotamontananew-hampshirenew-jerseynew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniasouth-dakotavermontvirginiawashingtonwest-virginiawisconsin

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