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

Tree Swallow Population Trend in New York

All statesAerial insectivores

Tree Swallow in New York has held roughly steady: down 8% on the route-weighted index since 1968.

-8%Since 1968
129Routes In State
58Years

Notable Tree Swallow Trends in New York

No notable trend signals for Tree Swallow in New York. See the full index history below.

Tree Swallow Population Forecast in New York

If the recent trend holds, Tree Swallow in New York is projected to rise about 46% by 2029 — from 4.9 in 2024 to a central estimate of 7.2 (95% range 4.0–10). A 5-year backtest shows a typical error of ±85.6%, with 0% of held-out values landing inside the 95% band.

+46%Change by 2029
7.2Projected 2029 index
4.0–1095% range
±85.6%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
20257.23.910
20267.23.910
20277.23.910
20287.23.910
20297.24.010

Tree Swallow Survey Routes in New York

Routes recording Tree Swallow in New York.
Macdougall3520241971
Ballston Lk3419951967
Mcdonough2620171970
Durham2519761966
Argyle2220241970
S Berne2120131967
Romulus2120001972
West Bangor2119991990
Swain2020071967
Hope Falls2019951968
Alder Creek1820041974
Dryden1620241966
Phillips Cr1520241967
Lisle1220221967
Vestal Ctr1220191966
Watertown1220121967
Dexter Lake1219751968
Jones Beach1120131966
Westbrookvle1120191966
Branchport1120241968
Castile1120241967
Byron1120241967
Warwick 21120131975
Nashville1020181972
Petersburg920151966

Tree Swallow Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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