BirdAnalyst
Species · New York · BBS 2025 Release · 1966–2024

Alder Flycatcher Population Trend in New York

All statesAerial insectivores

Alder Flycatcher in New York has surged: up 612% on the route-weighted index since 1968.

+612%Since 1968
105Routes In State
58Years

Notable Alder Flycatcher Trends in New York

long arc increasecomputed index

Alder Flycatcher has surged in New York: up 612% on the route-weighted index since 1968.

Alder Flycatcher Population Forecast in New York

If the recent trend holds, Alder Flycatcher in New York is projected to rise about 23% by 2029 — from 2.1 in 2024 to a central estimate of 2.6 (95% range 1.7–3.4). A 5-year backtest shows a typical error of ±42.5%, with 60% of held-out values landing inside the 95% band.

+23%Change by 2029
2.6Projected 2029 index
1.7–3.495% range
±42.5%Backtest error
19662029
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
20252.41.63.3
20262.51.63.3
20272.51.63.4
20282.51.73.4
20292.61.73.4

Alder Flycatcher Survey Routes in New York

Routes recording Alder Flycatcher in New York.
West Bangor2319991990
St Regis Fls1520171976
Dryden1120241975
Degrasse1120241980
Phillips Cr1020241970
Wanakena1020241980
Platte Cove920181981
Swain 2820242011
Dannemora720061968
Ellenburg720061989
S Berne 2720242014
Meridale620241993
Mcdonough620171967
Oriskany Fls620231973
Highmarket620241968
Milford620231984
Horseshoe L.620171992
Duanesburg520241994
Nashville520181999
Ogdensburg520241981
Sciota520061974
Medusa420231994
S Berne420131967
Laurens420241979
Oneonta420241974

Alder Flycatcher Population Trend in Other States

alaskaconnecticutidahoillinoisindianaiowamainemarylandmassachusettsmichiganminnesotamontananew-hampshirenew-jerseynorth-carolinanorth-dakotaohiooklahomapennsylvaniasouth-dakotavermontvirginiawashingtonwest-virginiawisconsin

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