BirdAnalyst
Species · BCR 22 · BBS 2025 Release · 1966–2024

Bank Swallow In Eastern Tallgrass Prairie

All regionsEastern Tallgrass PrairieAerial insectivores

Bank Swallow in Eastern Tallgrass Prairie has collapsed: down 90% on the route-weighted index since 1968.

-90%Since 1968
163Routes In Region
58Years

Notable Signals

long arc declinecomputed index

Bank Swallow has collapsed in Eastern Tallgrass Prairie: down 90% on the route-weighted index since 1968.

Forecast

If the recent trend holds, Bank Swallow in Eastern Tallgrass Prairie is projected to rise about 242% by 2029 — from 0.31 in 2024 to a central estimate of 1.1 (95% range 0.00–2.3). A 5-year backtest shows a typical error of ±1658.7%, with 60% of held-out values landing inside the 95% band.

+242%Change by 2029
1.1Projected 2029 index
0.00–2.395% range
±1658.7%Backtest error
19662029
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
20251.10.002.3
20261.10.002.3
20271.10.002.3
20281.10.002.3
20291.10.002.3

Routes In Eastern Tallgrass Prairie

Routes recording Bank Swallow in Eastern Tallgrass Prairie.
EllinorKANSAS1002018
WrefordKANSAS562001
SticklervillMISSOURI402015
WayneILLINOIS262024
IrvingtonNEBRASKA202021
DinsdaleIOWA152015
MackinawILLINOIS132017
FrontenacMINNESOTA122024
No KentonOHIO122015
Grape CreekILLINOIS112019
SwayzeeINDIANA112000
LacledeMISSOURI112010
Mt VernonILLINOIS101980
Cedar ValleyIOWA101997
HumboldtKANSAS101986
WilmingtonOHIO91990
SterlingILLINOIS82007
Witts StationINDIANA82024
PrairieburgIOWA82013
TecumsehOHIO81971
JamestownILLINOIS71981
KeithsburgILLINOIS72009
DesmoinesIOWA71974
FrankfordMISSOURI72013
ConcordILLINOIS61987

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