BirdAnalyst
Species · BCR 16 · BBS 2025 Release · 1966–2024

Northern Rough-winged Swallow In Southern Rockies / Colorado Plateau

All regionsSouthern Rockies / Colorado PlateauAerial insectivores

Northern Rough-winged Swallow in Southern Rockies / Colorado Plateau has declined: down 39% on the route-weighted index since 1970.

-39%Since 1970
164Routes In Region
56Years

Notable Signals

No notable trend signals for Northern Rough-winged Swallow in Southern Rockies / Colorado Plateau. See the full index history below.

Forecast

If the recent trend holds, Northern Rough-winged Swallow in Southern Rockies / Colorado Plateau is projected to rise about 23% by 2029 — from 0.69 in 2024 to a central estimate of 0.85 (95% range 0.00–2.5). A 5-year backtest shows a typical error of ±70.8%, with 100% of held-out values landing inside the 95% band.

+23%Change by 2029
0.85Projected 2029 index
0.00–2.595% range
±70.8%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
20250.900.002.6
20260.890.002.6
20270.880.002.6
20280.860.002.6
20290.850.002.5

Routes In Southern Rockies / Colorado Plateau

Routes recording Northern Rough-winged Swallow in Southern Rockies / Colorado Plateau.
WaldenCOLORADO232018
HannaUTAH162024
CortezCOLORADO112008
Rifle FallsCOLORADO102021
RosevaleCOLORADO92023
AltonahUTAH92015
Rose WellsARIZONA81969
BufordCOLORADO72024
DoloresCOLORADO71987
AnimasCOLORADO62000
ShivwitzUTAH62024
MoabUTAH62024
AltonUTAH62019
EscalanteUTAH62023
Douglas PassCOLORADO52024
MoffatCOLORADO52003
Pagosa SpgsCOLORADO51982
Haycamp MesaCOLORADO51998
Angel Fire 2NEW-MEXICO52024
CanyonlandsUTAH52004
FerronUTAH52017
Wellington 3UTAH52019
HuntARIZONA41995
GreasewoodARIZONA41993
Yellowjacket PassCOLORADO42023

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