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

Plumbeous Vireo In Sierra Madre Occidental

Plumbeous Vireo in Sierra Madre Occidental has risen sharply: up 55% on the route-weighted index since 1970.

+55%Since 1970
27Routes In Region
55Years

Notable Signals

long arc increasecomputed index

Plumbeous Vireo has risen sharply in Sierra Madre Occidental: up 55% on the route-weighted index since 1970.

Forecast

If the recent trend holds, Plumbeous Vireo in Sierra Madre Occidental is projected to rise about 16% by 2029 — from 5.6 in 2024 to a central estimate of 6.5 (95% range 3.6–9.3). A 5-year backtest shows a typical error of ±16.3%, with 100% of held-out values landing inside the 95% band.

+16%Change by 2029
6.5Projected 2029 index
3.69.395% range
±16.3%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
20256.33.59.1
20266.33.59.2
20276.43.59.2
20286.43.69.3
20296.53.69.3

Routes In Sierra Madre Occidental

Routes recording Plumbeous Vireo in Sierra Madre Occidental.
Happy JackARIZONA472024
ReserveNEW-MEXICO332023
PinetopARIZONA242022
SprucedaleARIZONA212023
Forest LakesARIZONA182024
AlpineARIZONA172023
FlagstaffARIZONA152022
PrescottARIZONA142022
Tonto Vill.ARIZONA112021
PortalARIZONA112024
Emory PassNEW-MEXICO112024
BlueARIZONA101991
WilliamsARIZONA102019
Mt. GrahamARIZONA72023
Carr MtnARIZONA72024
Aztec PeakARIZONA61978
RuckerARIZONA62009
Vicks PeakNEW-MEXICO52024
Mormon LakeARIZONA31975
PomereneARIZONA32006
SunizonaARIZONA21996
Skull ValleyARIZONA22022
PatagoniaARIZONA12019
MaineARIZONA12021
SahuaritaARIZONA12012

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