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Western bluebird

Sialia mexicana

CA Special Concern

California Species of Special Concern

Brilliant blue male, rusty-orange chest; gray female. Native Bay Area cavity nester; insectivore controlling grasshoppers and beetles in gardens and grasslands.

Plants that support Western bluebird

4 plants

Hollyleaf Buckthorn

Rhamnus crocea

high

shrub

Important fruit source during fall migration and winter staging

Bay Area native

Pacific Poison Oak

Toxicodendron diversilobum

high

shrub

Critical fall migration fuel source August-October

Bay Area native

Toyon

Heteromeles arbutifolia

moderate

tree

Seasonal visitor and resident, berries support fall/winter diet Sep-Feb

Bay Area native

Utah Serviceberry

Amelanchier utahensis

high

shrub

Fall and winter diet staple; supports flocking behavior Aug-Feb

Bay Area nativeKeystone species