BirdAnalyst
Species · BCR 21 · BBS 2025 Release · 1966–2024

Field Sparrow In Oaks and Prairies

All regionsOaks and PrairiesGeneralists

Field Sparrow in Oaks and Prairies has collapsed: down 85% on the route-weighted index since 1969.

-85%Since 1969
47Routes In Region
57Years

Notable Signals

long arc declinecomputed index

Field Sparrow has collapsed in Oaks and Prairies: down 85% on the route-weighted index since 1969.

Forecast

If the recent trend holds, Field Sparrow in Oaks and Prairies is projected to rise about 25% by 2029 — from 2.0 in 2024 to a central estimate of 2.5 (95% range 0.00–6.8). A 5-year backtest shows a typical error of ±44.5%, with 100% of held-out values landing inside the 95% band.

+25%Change by 2029
2.5Projected 2029 index
0.00–6.895% range
±44.5%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
20252.90.007.2
20262.80.007.1
20272.70.007.0
20282.60.006.9
20292.50.006.8

Routes In Oaks and Prairies

Routes recording Field Sparrow in Oaks and Prairies.
TatumsOKLAHOMA282024
HoldenvilleOKLAHOMA262024
BarnsdallOKLAHOMA261977
ArdmoreOKLAHOMA232009
SkiatookOKLAHOMA182019
BartlesvilleOKLAHOMA142024
BonnerTEXAS141994
Mill CreekOKLAHOMA102018
NobleOKLAHOMA82024
DuncanOKLAHOMA72024
LocoOKLAHOMA61985
HeyburnOKLAHOMA62024
CampbelltonTEXAS61972
OsageTEXAS42009
ChoctawOKLAHOMA32022
LockhartTEXAS32024
Oak GroveTEXAS31986
OlneyTEXAS32023
BriteTEXAS32021
Gambill Ref.TEXAS31995
DecaturTEXAS31999
SeldenTEXAS22011
GrafordTEXAS22013
LydiaTEXAS22012
Miller GroveTEXAS22007

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