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

Olive Sparrow In Oaks and Prairies

All regionsOaks and PrairiesGeneralists

Olive Sparrow in Oaks and Prairies has surged: up 13× on the route-weighted index since 1984.

13×Since 1984
5Routes In Region
36Years

Notable Signals

long arc increasecomputed index

Olive Sparrow has surged in Oaks and Prairies: up 13× on the route-weighted index since 1984.

Forecast

If the recent trend holds, Olive Sparrow in Oaks and Prairies is projected to stay roughly flat through 2029, near 1.3 (95% range 0.66–2.0). A 5-year backtest shows a typical error of ±391.5%, with 80% of held-out values landing inside the 95% band.

+4%Change by 2029
1.3Projected 2029 index
0.66–2.095% range
±391.5%Backtest error
19752029
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
20251.30.561.9
20261.30.582.0
20271.30.612.0
20281.30.632.0
20291.30.662.0

Routes In Oaks and Prairies

Routes recording Olive Sparrow in Oaks and Prairies.
Three RiversTEXAS362024
CampbelltonTEXAS122024
BriteTEXAS112024
HobsonTEXAS22024
FanninTEXAS12021

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