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

Woodhouse's Scrub-Jay In Sierra Madre Occidental

All regionsSierra Madre OccidentalGeneralists

Woodhouse's Scrub-Jay in Sierra Madre Occidental has surged: up 618% on the route-weighted index since 1971.

+618%Since 1971
30Routes In Region
54Years

Notable Signals

long arc increasecomputed index

Woodhouse's Scrub-Jay has surged in Sierra Madre Occidental: up 618% on the route-weighted index since 1971.

Forecast

If the recent trend holds, Woodhouse's Scrub-Jay in Sierra Madre Occidental is projected to stay roughly flat through 2029, near 3.7 (95% range 0.81–6.6). A 5-year backtest shows a typical error of ±17.3%, with 100% of held-out values landing inside the 95% band.

-2%Change by 2029
3.7Projected 2029 index
0.81–6.695% range
±17.3%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
20253.70.806.6
20263.70.816.6
20273.70.816.6
20283.70.816.6
20293.70.816.6

Routes In Sierra Madre Occidental

Routes recording Woodhouse's Scrub-Jay in Sierra Madre Occidental.
Skull ValleyARIZONA302024
PinetopARIZONA122022
Emory PassNEW-MEXICO112024
RuckerARIZONA92000
SunizonaARIZONA81997
Bartlett ResARIZONA72024
PrescottARIZONA52022
Aztec PeakARIZONA51978
BlueARIZONA41991
Forest LakesARIZONA42024
RedingtonARIZONA42023
PortalARIZONA42024
DragoonARIZONA42009
Carr MtnARIZONA32024
ReserveNEW-MEXICO32023
MagdalenaNEW-MEXICO32024
Mormon LakeARIZONA21975
McnealARIZONA21997
Happy JackARIZONA21989
Clay SpringARIZONA22024
Sunizona 2ARIZONA22024
San SimonARIZONA11983
Peña BlancaARIZONA12023
PatagoniaARIZONA12011
WilliamsARIZONA12019

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