Species · BCR 18 · BBS 2025 Release · 1966–2024

Bank Swallow In Shortgrass Prairie

Bank Swallow in Shortgrass Prairie has collapsed: down 97% on the route-weighted index since 1969.

-97%Since 1969
27Routes In Region
45Years

Notable Signals

long arc declinecomputed index

Bank Swallow has collapsed in Shortgrass Prairie: down 97% on the route-weighted index since 1969.

Forecast

If the recent trend holds, Bank Swallow in Shortgrass Prairie is projected to stay roughly flat through 2029, near 0.00 (95% range 0.00–1.4). A 5-year backtest shows a typical error of ±924.5%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2029
0.00Projected 2029 index
0.001.495% range
±924.5%Backtest error
19672029
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
20250.000.001.4
20260.000.001.4
20270.000.001.4
20280.000.001.4
20290.000.001.4

Routes In Shortgrass Prairie

Routes recording Bank Swallow in Shortgrass Prairie.
Murray LakeNEBRASKA142013
WallaceKANSAS132003
Fort MorganCOLORADO122021
Prospect ValCOLORADO111992
LamarCOLORADO101995
ArsenalCOLORADO102015
DaltonNEBRASKA101987
HardestyOKLAHOMA102006
Clear LakeOKLAHOMA62000
Agate 2NEBRASKA52022
YoderWYOMING51968
Two ButtesCOLORADO31995
PaxtonNEBRASKA31992
Pine BluffWYOMING31992
LakinKANSAS22001
BenkelmanNEBRASKA22008
Cooley LakeNEW-MEXICO21995
RosebudNEW-MEXICO22003
Mica ButteCOLORADO11968
HudsonCOLORADO12024
Adams Co.COLORADO11995
AgateNEBRASKA11995
MarslandNEBRASKA12018
FeltOKLAHOMA12007
KeyesOKLAHOMA12008

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