BirdAnalyst
Species · BCR 32 · BBS 2025 Release · 1966–2024

Mountain Bluebird In Coastal California

All regionsCoastal CaliforniaForest birds

Mountain Bluebird in Coastal California has collapsed: down 86% on the route-weighted index since 1971.

-86%Since 1971
8Routes In Region
15Years

Notable Signals

long arc declinecomputed index

Mountain Bluebird has collapsed in Coastal California: down 86% on the route-weighted index since 1971.

Routes In Coastal California

Routes recording Mountain Bluebird in Coastal California.
OnealsCALIFORNIA22015
AlamarCALIFORNIA21997
Yokohl ValCALIFORNIA11973
Big BearCALIFORNIA11980
Sawmill MtnCALIFORNIA11971
Green ValleyCALIFORNIA11998
VentucopaCALIFORNIA11997
JacumbaCALIFORNIA11976

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