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

Verdin In Sierra Madre Occidental

All regionsSierra Madre OccidentalArid-land birds

Verdin in Sierra Madre Occidental has edged down: down 16% on the route-weighted index since 1970.

-16%Since 1970
20Routes In Region
56Years

Notable Signals

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

Forecast

If the recent trend holds, Verdin in Sierra Madre Occidental is projected to stay roughly flat through 2029, near 6.3 (95% range 1.5–11). A 5-year backtest shows a typical error of ±88.1%, with 80% of held-out values landing inside the 95% band.

+10%Change by 2029
6.3Projected 2029 index
1.5–1195% range
±88.1%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
20256.31.511
20266.31.511
20276.31.511
20286.31.511
20296.31.511

Routes In Sierra Madre Occidental

Routes recording Verdin in Sierra Madre Occidental.
CutterARIZONA602014
Bartlett ResARIZONA432024
PomereneARIZONA322024
RedingtonARIZONA242023
Carr MtnARIZONA162024
Aztec PeakARIZONA151978
AmadoARIZONA112023
SunizonaARIZONA71997
SahuaritaARIZONA62024
PatagoniaARIZONA32023
San SimonARIZONA22024
Peña BlancaARIZONA22024
DragoonARIZONA22009
RuckerARIZONA22003
Vicks PeakNEW-MEXICO22022
Skull ValleyARIZONA12018
McnealARIZONA12024
PortalARIZONA12024
Sunizona 2ARIZONA12023
MagdalenaNEW-MEXICO12022

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