Meet Baldrick and Tintin.
They are our tiniest guests, (of the feathered persuasion anyway). Like most tits they come one at a time, each taking just one seed, (preferably a sunflower seed), then fly off to enjoy it in their tree. (This is quite unlike the sparrows who like to just bask in the food dish and eat all the seeds they can possibly reach. A bit uncivil those sparrows...)