It was too fast for a good picture, but had several people also see it and confirm.
A Steller's Jay at Muir Rock in Kings Canyon National Park
Keeping an eye on an American Kestrel.
pájaro de color azul marino.
The Steller's jay (Cyanocitta stelleri) is a jay native to western North America, closely related to the blue jay found in the rest of the continent, but with a black head and upper body. It is also known as the long-crested jay, mountain jay, and pine jay. It is the only crested jay west of the Rocky Mountains.