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

Northern Rough-winged Swallow Population Trend in New Mexico

All statesAerial insectivores

Northern Rough-winged Swallow in New Mexico has edged down: down 18% on the route-weighted index since 1970.

-18%Since 1970
52Routes In State
51Years

Notable Northern Rough-winged Swallow Trends in New Mexico

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

Northern Rough-winged Swallow Population Forecast in New Mexico

If the recent trend holds, Northern Rough-winged Swallow in New Mexico is projected to fall about 47% by 2029 — from 0.52 in 2024 to a central estimate of 0.28 (95% range 0.00–0.83). A 5-year backtest shows a typical error of ±50.4%, with 100% of held-out values landing inside the 95% band.

-47%Change by 2029
0.28Projected 2029 index
0.00–0.8395% range
±50.4%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
20250.300.000.86
20260.300.000.85
20270.290.000.84
20280.280.000.84
20290.280.000.83

Northern Rough-winged Swallow Survey Routes in New Mexico

Routes recording Northern Rough-winged Swallow in New Mexico.
Sabinoso1920112001
Roswell720231974
Raton719941994
Grenville520242003
Angel Fire 2520242005
Red Rock520221992
Farmington419791975
Ojo Sarco420241968
Angel Fire420021992
Vallecitos420241994
La Plata420091992
Aztec419891988
Salt Lake320002000
La Plata 2320162016
Clovis320142001
Vicks Peak319941994
Pinon320241994
La Cienega220181970
Valencia219971972
San Antonio219771977
Carrizozo220081999
Mcgaffey220141996
Quemado219971996
Mesilla220001992
Logan220141987

Northern Rough-winged Swallow Population Trend in Other States

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

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