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

Swainson's Hawk In Eastern Tallgrass Prairie

All regionsEastern Tallgrass PrairieGeneralists

Swainson's Hawk in Eastern Tallgrass Prairie has collapsed: down 83% on the route-weighted index since 1969.

-83%Since 1969
23Routes In Region
37Years

Notable Signals

No notable trend signals for Swainson's Hawk in Eastern Tallgrass Prairie. See the full index history below.

Forecast

If the recent trend holds, Swainson's Hawk in Eastern Tallgrass Prairie is projected to stay roughly flat through 2026, near 0.00 (95% range 0.00–0.03). A 5-year backtest shows a typical error of ±36.7%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2026
0.00Projected 2026 index
0.00–0.0395% range
±36.7%Backtest error
19672026
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
20220.010.000.03
20230.010.000.03
20240.010.000.03
20250.010.000.03
20260.000.000.03

Routes In Eastern Tallgrass Prairie

Routes recording Swainson's Hawk in Eastern Tallgrass Prairie.
WrefordKANSAS31974
Le LoupKANSAS22007
Ash CreekMINNESOTA22017
GazaIOWA12002
GalesburgKANSAS11970
HumboldtKANSAS12013
OlatheKANSAS11990
DoverKANSAS12021
BarclayKANSAS11968
EllinorKANSAS12011
Rock CreekKANSAS11973
SenecaKANSAS11976
ReeceKANSAS12018
Trading PostKANSAS12014
LincolnvilleKANSAS12009
LakevilleMINNESOTA11982
NorborneMISSOURI12018
WatsonMISSOURI12016
ThurstonNEBRASKA11980
PeoriaOKLAHOMA12015
WelchOKLAHOMA12011
CollinsvilleOKLAHOMA12013
WainwrightOKLAHOMA12003

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