BirdAnalyst
Species · BCR 34 · BBS 2025 Release · 1966–2024

Chihuahuan Meadowlark In Sierra Madre Occidental

All regionsSierra Madre OccidentalGeneralists

Chihuahuan Meadowlark in Sierra Madre Occidental has fallen sharply: down 66% on the route-weighted index since 1970.

-66%Since 1970
24Routes In Region
56Years

Notable Signals

long arc declinecomputed index

Chihuahuan Meadowlark has fallen sharply in Sierra Madre Occidental: down 66% on the route-weighted index since 1970.

Forecast

If the recent trend holds, Chihuahuan Meadowlark in Sierra Madre Occidental is projected to fall about 92% by 2029 — from 3.2 in 2024 to a central estimate of 0.26 (95% range 0.00–9.4). A 5-year backtest shows a typical error of ±85.2%, with 100% of held-out values landing inside the 95% band.

-92%Change by 2029
0.26Projected 2029 index
0.00–9.495% range
±85.2%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
20250.980.0010
20260.800.009.9
20270.620.009.7
20280.440.009.6
20290.260.009.4

Routes In Sierra Madre Occidental

Routes recording Chihuahuan Meadowlark in Sierra Madre Occidental.
AlpineARIZONA492023
RuckerARIZONA412009
Mormon LakeARIZONA221974
DragoonARIZONA152009
PatagoniaARIZONA132024
MagdalenaNEW-MEXICO122024
Clay SpringARIZONA112024
Forest LakesARIZONA82024
Sunizona 2ARIZONA72024
SunizonaARIZONA51997
SprucedaleARIZONA52023
McnealARIZONA32024
PrescottARIZONA21998
PomereneARIZONA22009
Peña BlancaARIZONA22000
AmadoARIZONA22007
Vicks PeakNEW-MEXICO22024
BlueARIZONA11984
San SimonARIZONA12010
Skull ValleyARIZONA12024
PinetopARIZONA12021
RedingtonARIZONA11996
SahuaritaARIZONA12007
PortalARIZONA12018

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