BirdAnalyst
Species · BCR 19 · BBS 2025 Release · 1966–2024

Cassin's Sparrow In Central Mixed Grass Prairie

All regionsCentral Mixed Grass PrairieGrassland birds

Cassin's Sparrow in Central Mixed Grass Prairie has surged: up 81% on the route-weighted index since 1969.

+81%Since 1969
66Routes In Region
57Years

Notable Signals

long arc increasecomputed index

Cassin's Sparrow has surged in Central Mixed Grass Prairie: up 81% on the route-weighted index since 1969.

Forecast

If the recent trend holds, Cassin's Sparrow in Central Mixed Grass Prairie is projected to stay roughly flat through 2029, near 4.0 (95% range 0.00–8.2). A 5-year backtest shows a typical error of ±19%, with 100% of held-out values landing inside the 95% band.

-9%Change by 2029
4.0Projected 2029 index
0.00–8.295% range
±19%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
20254.10.008.3
20264.10.008.3
20274.00.008.3
20284.00.008.3
20294.00.008.2

Routes In Central Mixed Grass Prairie

Routes recording Cassin's Sparrow in Central Mixed Grass Prairie.
GirardTEXAS482023
RosstonOKLAHOMA442018
Pear ValleyTEXAS372024
WilliamsTEXAS312024
EldoradoTEXAS252023
LakeviewTEXAS242024
HackberryTEXAS222024
AshlandKANSAS212021
MertzonTEXAS212019
ChildressTEXAS212024
SilverTEXAS212024
BeaverOKLAHOMA202018
HawleyTEXAS202024
HaskellTEXAS192024
ColdwaterKANSAS162011
GraybackTEXAS142024
WoodwardOKLAHOMA132024
WeinertTEXAS131994
Beaver CreekTEXAS132024
BookerTEXAS122024
Shields 2TEXAS112023
ClarendonTEXAS102024
ShieldsTEXAS92001
JetOKLAHOMA82022
HopewellKANSAS72011

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