Crows and jays (Corvidae)

California Scrub-Jay

Aphelocoma californica. Acorns, insects, fruit and small animals.

Crows and jays (Corvidae)California Scrub-JayAphelocoma californica
Scientific name
Aphelocoma californica
Length
10.6–11.8 in
Weight
2.8–3.5 oz
Nest
Twig cup in oaks or shrubs 3–30 ft up
Entrance hole
Does not use nest boxes
Clutch
3–6 eggs
Incubation
15–17 days
Broods
1 per season

Identification

  • Bright blue head, wings and tail
  • Brown-grey back
  • Blue 'necklace' across a whitish breast

Voice

Raspy, scolding 'jree-jree'.

Diet and feeding

California Scrub-Jays by state and province

RegionStatusNesting
CaliforniaYear-round residentFebruary–June

Frequently asked

What do California scrub-jays eat?

Acorns, insects, fruit and small animals. At feeders: peanuts, sunflower, suet.

How big is a California Scrub-Jay?

10.6–11.8 in long and 2.8–3.5 oz.

Do California scrub-jays use birdhouses?

No. Twig cup in oaks or shrubs 3–30 ft up.

Sources

  1. California Scrub-Jay — All About Birds, Cornell Lab of Ornithology
  2. California Scrub-Jay life history — Cornell Lab of Ornithology
  3. California Scrub-Jay — Audubon Guide to North American Birds

Timing reflects typical patterns for the region as a whole; local dates vary with elevation and year. Check the linked eBird bar charts for your county.