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

Spotted Towhee In Chihuahuan Desert

All regionsChihuahuan DesertGeneralists

Spotted Towhee in Chihuahuan Desert has surged: up 125% on the route-weighted index since 1972.

+125%Since 1972
17Routes In Region
49Years

Notable Signals

long arc increasecomputed index

Spotted Towhee has surged in Chihuahuan Desert: up 125% on the route-weighted index since 1972.

Forecast

If the recent trend holds, Spotted Towhee in Chihuahuan Desert is projected to fall about 10% by 2029 — from 2.0 in 2024 to a central estimate of 1.8 (95% range 0.00–4.0). A 5-year backtest shows a typical error of ±166.5%, with 100% of held-out values landing inside the 95% band.

-10%Change by 2029
1.8Projected 2029 index
0.00–4.095% range
±166.5%Backtest error
19682029
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
20251.80.004.0
20261.80.004.0
20271.80.004.0
20281.80.004.0
20291.80.004.0

Routes In Chihuahuan Desert

Routes recording Spotted Towhee in Chihuahuan Desert.
PinonNEW-MEXICO352024
CarrizozoNEW-MEXICO182024
Capitan Mtn.NEW-MEXICO72017
Laborcita 2NEW-MEXICO42024
RodeoNEW-MEXICO31976
San AntonioNEW-MEXICO21977
LaborcitaNEW-MEXICO22019
Chisos BasinTEXAS22024
GageNEW-MEXICO12021
CloudcroftNEW-MEXICO12023
Red RockNEW-MEXICO12023
QueenNEW-MEXICO12021
EscondidaNEW-MEXICO12019
Lake ValleyNEW-MEXICO12018
Sunshine WllNEW-MEXICO12008
Ft. StocktonTEXAS12013
MarfaTEXAS12004

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