BirdAnalyst
Species · Texas · BBS 2025 Release · 1966–2024

Olive Sparrow Population Trend in Texas

All statesGeneralists

Olive Sparrow in Texas has surged: up 683% on the route-weighted index since 1969.

+683%Since 1969
46Routes In State
57Years

Notable Olive Sparrow Trends in Texas

long arc increasecomputed index

Olive Sparrow has surged in Texas: up 683% on the route-weighted index since 1969.

Olive Sparrow Population Forecast in Texas

If the recent trend holds, Olive Sparrow in Texas is projected to stay roughly flat through 2029, near 2.2 (95% range 1.5–3.0). A 5-year backtest shows a typical error of ±11.1%, with 100% of held-out values landing inside the 95% band.

+5%Change by 2029
2.2Projected 2029 index
1.5–3.095% range
±11.1%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
20252.11.32.8
20262.11.42.9
20272.21.42.9
20282.21.42.9
20292.21.53.0

Olive Sparrow Survey Routes in Texas

Routes recording Olive Sparrow in Texas.
Encinal4220101970
George West3620241967
Three Rivers3620241994
Millett 23520242013
Sejita2920242008
Lag Atascosa2620241969
Kingsville2320241967
Hondo2320241975
Agua Nueva2220231976
Loyola Beach2120091995
Rachal1820231967
San Pedro1820231996
Randado1620241973
Mirando City1620242007
Catarina1620101977
Indian Mtn1520241997
El Sauz1420231993
Campbellton1220241975
Brite1120241994
Catarina 31120242018
Raymondville1020241970
Loyola Beach 2920242010
Millett920121995
Guerra920231988
La Pryor820171969

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