BirdAnalyst
Species · BCR 17 · BBS 2025 Release · 1966–2024

Violet-green Swallow In Badlands and Prairies

All regionsBadlands and PrairiesAerial insectivores

Violet-green Swallow in Badlands and Prairies has declined: down 44% on the route-weighted index since 1969.

-44%Since 1969
49Routes In Region
57Years

Notable Signals

No notable trend signals for Violet-green Swallow in Badlands and Prairies. See the full index history below.

Forecast

If the recent trend holds, Violet-green Swallow in Badlands and Prairies is projected to rise about 134% by 2029 — from 0.57 in 2024 to a central estimate of 1.3 (95% range 0.36–2.3). A 5-year backtest shows a typical error of ±268.5%, with 0% of held-out values landing inside the 95% band.

+134%Change by 2029
1.3Projected 2029 index
0.36–2.395% range
±268.5%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
20251.30.312.3
20261.30.332.3
20271.30.342.3
20281.30.352.3
20291.30.362.3

Routes In Badlands and Prairies

Routes recording Violet-green Swallow in Badlands and Prairies.
MoskeeWYOMING512001
Roubaix LkSOUTH-DAKOTA251991
Moskee 2WYOMING222021
St XavierMONTANA182010
Pleasant ValSOUTH-DAKOTA142018
Moskee 3WYOMING112024
RevaSOUTH-DAKOTA102024
Long DrawSOUTH-DAKOTA102024
Lightning CrSOUTH-DAKOTA62022
Maynard CouleeMONTANA52024
Roosevelt PkNORTH-DAKOTA52017
Black FoxSOUTH-DAKOTA52017
NorbeckSOUTH-DAKOTA52001
ArvadaWYOMING52012
Gvnt ValleyWYOMING52018
JordanMONTANA42018
Bull Mtn.MONTANA42021
HazelrodtSOUTH-DAKOTA42022
Oglala Nat. Grass.NEBRASKA32023
OwankaSOUTH-DAKOTA31999
RochfordSOUTH-DAKOTA32014
Soda WellWYOMING31980
UptonWYOMING31987
LuskWYOMING32006
FlatwillowMONTANA21987

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