California Scrub Jay
Aphelocoma californica
The California scrub jay is a medium-sized bird, approximately 27–31 cm (11–12 in) in length (including its tail), with a 39 cm (15 in) wingspan, and about 80 g (2.8 oz) in weight. In general, this species has a blue head, wings, and tail; a gray-brown back; grayish underparts; and white eyebrows. The throat is whitish with a blue necklace. The call or "squawk" is described as "harsh and angry-sounding".
ID text from Wikipedia, CC BY-SA 4.0
Woodhouse's Scrub Jay
Aphelocoma woodhouseii
Woodhouse's scrub jay is a medium-sized bird, approximately 27–31 cm (11–12 in) in length (including its tail), with a 39 cm (15 in) wingspan, and about 80 g (2.8 oz) in weight. The species has a blue head, wings, and tail; a gray-brown back; and grayish underparts. The throat is whitish with a partial blue breast band ("necklace"). The call is described as "harsh and scratchy". Compared to the California scrub jay, Woodhouse's has a duller blue, darker gray underparts, a less distinct blue necklace, and a straighter bill.
ID text from Wikipedia, CC BY-SA 4.0
Where you might meet both
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