BirdAnalyst
Species · BCR 35 · BBS 2025 Release · 1966–2024

Lark Sparrow In Chihuahuan Desert

All regionsChihuahuan DesertGrassland birds

Lark Sparrow in Chihuahuan Desert has declined: down 26% on the route-weighted index since 1969.

-26%Since 1969
47Routes In Region
57Years

Notable Signals

No notable trend signals for Lark Sparrow in Chihuahuan Desert. See the full index history below.

Forecast

If the recent trend holds, Lark Sparrow in Chihuahuan Desert is projected to rise about 10% by 2029 — from 3.6 in 2024 to a central estimate of 4.0 (95% range 1.1–6.9). A 5-year backtest shows a typical error of ±50.2%, with 100% of held-out values landing inside the 95% band.

+10%Change by 2029
4.0Projected 2029 index
1.1–6.995% range
±50.2%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
20254.01.17.0
20264.01.17.0
20274.01.16.9
20284.01.16.9
20294.01.16.9

Routes In Chihuahuan Desert

Routes recording Lark Sparrow in Chihuahuan Desert.
Capitan Mtn.NEW-MEXICO592017
PumpvilleTEXAS322024
Devils R CynTEXAS272024
OzonaTEXAS232022
MarfaTEXAS152024
LakewoodNEW-MEXICO142021
PinonNEW-MEXICO142024
RoswellNEW-MEXICO132023
LongfellowTEXAS132024
GirvinTEXAS72017
Ft. DavisTEXAS72023
San AntonioNEW-MEXICO51977
LaborcitaNEW-MEXICO42015
AltudaTEXAS42023
CornudasTEXAS42015
GageNEW-MEXICO32006
QueenNEW-MEXICO32021
ComstockTEXAS32022
Hot SpringsTEXAS32023
LangtryTEXAS32000
Coyanda DrawTEXAS32023
DemingNEW-MEXICO21975
Bitter LakeNEW-MEXICO22023
EscondidaNEW-MEXICO22015
ValentineTEXAS21987

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