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

Northern Rough-winged Swallow Population Trend in Oregon

All statesAerial insectivores

Northern Rough-winged Swallow in Oregon has increased: up 29% on the route-weighted index since 1970.

+29%Since 1970
100Routes In State
56Years

Notable Northern Rough-winged Swallow Trends in Oregon

No notable trend signals for Northern Rough-winged Swallow in Oregon. See the full index history below.

Northern Rough-winged Swallow Population Forecast in Oregon

If the recent trend holds, Northern Rough-winged Swallow in Oregon is projected to rise about 317% by 2029 — from 0.34 in 2024 to a central estimate of 1.4 (95% range 0.00–4.3). A 5-year backtest shows a typical error of ±206.2%, with 100% of held-out values landing inside the 95% band.

+317%Change by 2029
1.4Projected 2029 index
0.00–4.395% range
±206.2%Backtest error
19682029
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
20251.50.004.3
20261.40.004.3
20271.40.004.3
20281.40.004.3
20291.40.004.3

Northern Rough-winged Swallow Survey Routes in Oregon

Routes recording Northern Rough-winged Swallow in Oregon.
Ordnance13619731971
Bly12919941994
Sandy River2520041993
Albee1919751971
Secret Val1120221975
Joseph1020241972
Ochoco719821973
Alvord Lake720181968
Crooked Riv.620171996
Sheaville620242012
Wedderburn520191970
Modoc Point520141972
Salem520151994
Barnes Val419871971
Silver Creek420191984
Adrian420211984
Donnybrook419971997
Donelly 2420182018
Timber319891976
Logdell319991971
Bridgeport320221986
Adair319811971
Dayton320231974
Pendleton320241978
Elkton320231974

Northern Rough-winged Swallow Population Trend in Other States

alabamaalaskaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

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