Black-throated Magpie-Jay
Cyanocorax colliei
This species is 58.5 to 76.5 cm (23.0 to 30.1 in) long, more than half of which is the tail, and weight is 225–251 g (7.9–8.9 oz). Only a very few corvids, including the black-billed magpie, the red-billed blue magpie and the closely related white-throated magpie-jay, have a comparable tail length. The upperparts are blue with white tips to the tail feathers; the underparts are white. The bill, legs, head, and conspicuous crest are black except for a pale blue crescent over the eyes and a patch under the eye.
ID text from Wikipedia, CC BY-SA 4.0
San Blas Jay
Cyanocorax sanblasianus
The adult San Blas jay is between 27 and 35 cm (11 and 14 in) long and weighs between 92 and 122 g (3 and 4 oz). The sexes are similar; the adult has back, rump, wings and tail blue and the remaining plumage black. There is a small crest on the front of the head, the bill is black, the irises are white and the legs are black. The juveniles are similar apart from a larger crest, a yellow bill and brown eyes.
ID text from Wikipedia, CC BY-SA 4.0
Where you might meet both
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Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Black-throated Magpie-Jay and San Blas Jay.