That is cool!!
When I lived near the beach in Santa Monica, scrub jays visited our tiny backyard. One day, I took some bird seed out on a paper plate and set it on the picnic table. The scrub jay pecked at it, but the plate kept moving. She then stood there, looked at me and kept squawking until I got the message and dumped the bird seed off the plate onto the table where she could peck successfully.
Being bossed around by a jaybird.... what bliss!!! ;^)