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

Curve-billed Thrasher In Chihuahuan Desert

All regionsChihuahuan DesertArid-land birds

Curve-billed Thrasher in Chihuahuan Desert has edged down: down 15% on the route-weighted index since 1969.

-15%Since 1969
52Routes In Region
57Years

Notable Signals

No notable trend signals for Curve-billed Thrasher in Chihuahuan Desert. See the full index history below.

Forecast

If the recent trend holds, Curve-billed Thrasher in Chihuahuan Desert is projected to fall about 27% by 2029 — from 1.6 in 2024 to a central estimate of 1.1 (95% range 0.00–2.6). A 5-year backtest shows a typical error of ±22%, with 100% of held-out values landing inside the 95% band.

-27%Change by 2029
1.1Projected 2029 index
0.00–2.695% range
±22%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
20251.20.002.7
20261.20.002.6
20271.20.002.6
20281.10.002.6
20291.10.002.6

Routes In Chihuahuan Desert

Routes recording Curve-billed Thrasher in Chihuahuan Desert.
PumpvilleTEXAS122024
ComstockTEXAS82017
GirvinTEXAS82024
CornudasTEXAS62018
Ft. DavisTEXAS62023
JornadaNEW-MEXICO52024
Van HornTEXAS42024
GageNEW-MEXICO32024
LakewoodNEW-MEXICO32019
Bitter LakeNEW-MEXICO32023
ValentineTEXAS31987
Casa PiedraTEXAS32022
LangtryTEXAS31997
Quitman Cyn.TEXAS32009
MarathonTEXAS32023
RoswellNEW-MEXICO22023
DemingNEW-MEXICO21971
Red RockNEW-MEXICO22024
QueenNEW-MEXICO22015
ColumbusNEW-MEXICO22024
Lake ValleyNEW-MEXICO22021
Devils R CynTEXAS22023
ToyahvaleTEXAS22024
CanutilloTEXAS22002
MarfaTEXAS22024

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