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

Purple Martin In Chihuahuan Desert

All regionsChihuahuan DesertAerial insectivores

Purple Martin in Chihuahuan Desert has edged down: down 11% on the route-weighted index since 1979.

-11%Since 1979
10Routes In Region
42Years

Notable Signals

No notable trend signals for Purple Martin in Chihuahuan Desert. See the full index history below.

Forecast

If the recent trend holds, Purple Martin in Chihuahuan Desert is projected to rise about 206% by 2029 — from 0.07 in 2024 to a central estimate of 0.21 (95% range 0.00–0.68). A 5-year backtest shows a typical error of ±69.6%, with 60% of held-out values landing inside the 95% band.

+206%Change by 2029
0.21Projected 2029 index
0.00–0.6895% range
±69.6%Backtest error
19772029
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
20250.240.000.70
20260.230.000.70
20270.220.000.69
20280.220.000.68
20290.210.000.68

Routes In Chihuahuan Desert

Routes recording Purple Martin in Chihuahuan Desert.
ComstockTEXAS72023
LongfellowTEXAS62023
CloudcroftNEW-MEXICO22024
PinonNEW-MEXICO22003
GirvinTEXAS21979
Devils R CynTEXAS22023
RodeoNEW-MEXICO11984
AltudaTEXAS12011
OzonaTEXAS11996
PumpvilleTEXAS12023

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