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

Botteri's Sparrow In Sierra Madre Occidental

All regionsSierra Madre OccidentalGeneralists

Botteri's Sparrow in Sierra Madre Occidental has increased: up 33% on the route-weighted index since 1972.

+33%Since 1972
10Routes In Region
48Years

Notable Signals

No notable trend signals for Botteri's Sparrow in Sierra Madre Occidental. See the full index history below.

Forecast

If the recent trend holds, Botteri's Sparrow in Sierra Madre Occidental is projected to rise about 86% by 2029 — from 0.33 in 2024 to a central estimate of 0.62 (95% range 0.00–1.5). A 5-year backtest shows a typical error of ±104.6%, with 100% of held-out values landing inside the 95% band.

+86%Change by 2029
0.62Projected 2029 index
0.00–1.595% range
±104.6%Backtest error
19692029
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
20250.600.001.4
20260.610.001.4
20270.610.001.4
20280.610.001.4
20290.620.001.5

Routes In Sierra Madre Occidental

Routes recording Botteri's Sparrow in Sierra Madre Occidental.
DragoonARIZONA102009
SahuaritaARIZONA82023
Peña BlancaARIZONA22024
McnealARIZONA22024
Sunizona 2ARIZONA22024
PomereneARIZONA12000
PatagoniaARIZONA12023
SunizonaARIZONA11986
AmadoARIZONA12023
RuckerARIZONA12009

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