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

Bank Swallow In Southern Rockies / Colorado Plateau

All regionsSouthern Rockies / Colorado PlateauAerial insectivores

Bank Swallow in Southern Rockies / Colorado Plateau has collapsed: down 87% on the route-weighted index since 1974.

-87%Since 1974
45Routes In Region
45Years

Notable Signals

long arc declinecomputed index

Bank Swallow has collapsed in Southern Rockies / Colorado Plateau: down 87% on the route-weighted index since 1974.

Forecast

If the recent trend holds, Bank Swallow in Southern Rockies / Colorado Plateau is projected to fall about 29% by 2029 — from 0.07 in 2024 to a central estimate of 0.05 (95% range 0.00–0.44). A 5-year backtest shows a typical error of ±242.4%, with 100% of held-out values landing inside the 95% band.

-29%Change by 2029
0.05Projected 2029 index
0.00–0.4495% range
±242.4%Backtest error
19702029
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
20250.070.000.46
20260.070.000.45
20270.060.000.45
20280.060.000.44
20290.050.000.44

Routes In Southern Rockies / Colorado Plateau

Routes recording Bank Swallow in Southern Rockies / Colorado Plateau.
DoloresCOLORADO181974
San LuisCOLORADO102000
Rifle FallsCOLORADO62014
DragertonUTAH51973
CastletonUTAH51975
Moon Lake 2UTAH52005
HannaUTAH52024
Wellington 2UTAH52010
Fox ParkWYOMING51999
ParlinCOLORADO41983
Yellowjacket PassCOLORADO42015
BicknellUTAH42002
EscalanteUTAH42007
HarmonyCOLORADO31980
KamasUTAH32024
WellingtonUTAH32002
YampaCOLORADO22013
BufordCOLORADO22021
Wilson CreekCOLORADO21998
De BequeCOLORADO21995
PaoniaCOLORADO21998
AntonitoCOLORADO22000
Piceance BasinCOLORADO22006
AltonahUTAH21979
JensenUTAH22022

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