BirdAnalyst
Species · BCR 9 · BBS 2025 Release · 1966–2024

Barn Swallow In Great Basin

All regionsGreat BasinAerial insectivores

Barn Swallow in Great Basin has edged up: up 13% on the route-weighted index since 1970.

+13%Since 1970
231Routes In Region
56Years

Notable Signals

No notable trend signals for Barn Swallow in Great Basin. See the full index history below.

Forecast

If the recent trend holds, Barn Swallow in Great Basin is projected to stay roughly flat through 2029, near 4.7 (95% range 0.00–12). A 5-year backtest shows a typical error of ±17.9%, with 100% of held-out values landing inside the 95% band.

+4%Change by 2029
4.7Projected 2029 index
0.00–1295% range
±17.9%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
20255.40.0013
20265.20.0013
20275.00.0013
20284.80.0013
20294.70.0012

Routes In Great Basin

Routes recording Barn Swallow in Great Basin.
UmatillaOREGON2012023
LikelyCALIFORNIA902024
PotholesWASHINGTON802023
Glenns FerryIDAHO671986
Scootney ReservoirWASHINGTON502024
DorrisCALIFORNIA472019
OthelloWASHINGTON441991
MesaWASHINGTON402008
Mud LakeIDAHO392023
Blacks CreekIDAHO382017
PocatelloIDAHO352019
EllensburgWASHINGTON342024
NewcastleUTAH332022
QuincyWASHINGTON332024
Columbia NwrWASHINGTON332022
Cedar HillIDAHO322024
Bear RiverUTAH322023
HarringtonWASHINGTON322012
HarwoodWASHINGTON321997
PrincetonOREGON271985
SelahWASHINGTON262023
Gardnerville 2NEVADA242024
Moses LakeWASHINGTON232022
SpringfieldIDAHO222018
OrdnanceOREGON221979

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