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

Horned Lark In Sierra Madre Occidental

All regionsSierra Madre OccidentalGrassland birds

Horned Lark in Sierra Madre Occidental has edged down: down 15% on the route-weighted index since 1970.

-15%Since 1970
23Routes In Region
56Years

Notable Signals

No notable trend signals for Horned Lark in Sierra Madre Occidental. See the full index history below.

Forecast

If the recent trend holds, Horned Lark in Sierra Madre Occidental is projected to fall about 35% by 2029 — from 7.7 in 2024 to a central estimate of 5.0 (95% range 0.00–12). A 5-year backtest shows a typical error of ±40.1%, with 100% of held-out values landing inside the 95% band.

-35%Change by 2029
5.0Projected 2029 index
0.00–1295% range
±40.1%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
20255.30.0013
20265.30.0013
20275.20.0013
20285.10.0012
20295.00.0012

Routes In Sierra Madre Occidental

Routes recording Horned Lark in Sierra Madre Occidental.
Clay SpringARIZONA632024
RuckerARIZONA422009
Forest LakesARIZONA362024
PatagoniaARIZONA152024
Sunizona 2ARIZONA132024
Skull ValleyARIZONA122024
AlpineARIZONA102023
FlagstaffARIZONA72022
MaineARIZONA62023
SunizonaARIZONA41997
PortalARIZONA42002
PrescottARIZONA31989
San SimonARIZONA32023
SprucedaleARIZONA31994
MagdalenaNEW-MEXICO32023
Mormon LakeARIZONA21975
Peña BlancaARIZONA21991
AmadoARIZONA22010
Vicks PeakNEW-MEXICO22008
BlueARIZONA11988
PomereneARIZONA12008
McnealARIZONA12019
DragoonARIZONA12006

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