This video from the USA says about itself:
1 May 2017
Steller’s Jay scavenging food from a wildlife refuge parking lot near Flagstaff, Arizona. A stunning bird very similar to the Blue Jay, but with black head and white eye lines. I was surprised to encounter this bird primarily as a scavenger hanging around public areas of western national parks. I have not seen Blue Jays back east exhibit this type of behavior that is more often seen with Grackles.