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Species · California · BBS 2025 Release · 1966–2024

Verdin Population Trend in California

All statesArid-land birds

Verdin in California has fallen sharply: down 66% on the route-weighted index since 1970.

-66%Since 1970
35Routes In State
56Years

Notable Verdin Trends in California

long arc declinecomputed index

Verdin has fallen sharply in California: down 66% on the route-weighted index since 1970.

Verdin Population Forecast in California

If the recent trend holds, Verdin in California is projected to fall about 19% by 2029 — from 0.28 in 2024 to a central estimate of 0.23 (95% range 0.00–0.59). A 5-year backtest shows a typical error of ±39.7%, with 100% of held-out values landing inside the 95% band.

-19%Change by 2029
0.23Projected 2029 index
0.00–0.5995% range
±39.7%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
20250.250.000.61
20260.240.000.61
20270.240.000.60
20280.230.000.60
20290.230.000.59

Verdin Survey Routes in California

Routes recording Verdin in California.
Coachella Cn4620131973
Imperial Dam2020101973
Glamis1420181968
Barstow1219981975
Ivanpah820191994
Iron Mtns820182000
Parker Dam720071973
Anza Borrego620241968
Niland620241973
Joshua Tree520021970
Essex519961988
Pearblossom520241970
Palo Verde420241973
Flynn419961988
Tecopa320211979
Lucerne Val320241988
Blythe320031973
Alamo River320181976
Cadiz219881988
Havasu Lake219731973
Joshua Tree 2220162013
Willow Springs 2220242013
Death Valley220031994
Cholla Gard.120211996
Brawley120091972

Verdin Population Trend in Other States

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