BirdAnalyst
Species · BCR 24 · BBS 2025 Release · 1966–2024

Vesper Sparrow In Central Hardwoods

All regionsCentral HardwoodsGrassland birds

Vesper Sparrow in Central Hardwoods has collapsed: down 83% on the route-weighted index since 1968.

-83%Since 1968
28Routes In Region
58Years

Notable Signals

long arc declinecomputed index

Vesper Sparrow has collapsed in Central Hardwoods: down 82% on the route-weighted index since 1968.

Forecast

If the recent trend holds, Vesper Sparrow in Central Hardwoods is projected to stay roughly flat through 2029, near 0.05 (95% range 0.00–0.18). A 5-year backtest shows a typical error of ±358.4%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2029
0.05Projected 2029 index
0.00–0.1895% range
±358.4%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
20250.050.000.18
20260.050.000.18
20270.050.000.18
20280.050.000.18
20290.050.000.18

Routes In Central Hardwoods

Routes recording Vesper Sparrow in Central Hardwoods.
BirdsILLINOIS112010
BrazilINDIANA42017
SpencerINDIANA32021
East UnionKENTUCKY31970
YorkILLINOIS22022
BrownvilleILLINOIS22019
RoyaltonILLINOIS22008
CumbackINDIANA22004
EvansvilleINDIANA21984
Daniel BooneKENTUCKY21970
Peace ValleyMISSOURI21999
CentertownMISSOURI21978
Brnt PrairieILLINOIS12014
BremenILLINOIS12011
PimentoINDIANA12005
AzaliaINDIANA12001
WashingtonINDIANA12024
Indian SpgsINDIANA12014
Clear SpringINDIANA12009
CorydonINDIANA11996
VevayINDIANA11997
ScottsburgINDIANA11997
NewberryINDIANA12019
HustonvilleKENTUCKY11973
DixieKENTUCKY11969

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