Blue Jays are one of my favorites. They come with their flock or brood depending on the time of year. They are very vocal. They let one another know what is happening. If I come out to fill the feeders, the blue jays let all the birds know. When they come to the feeders they carry extra food back with them to eat later or to share with their young or mate. First they fill up the space in their throat that is made just for this task. You can see their throat expand as they fill the little compartment up with the food. Once it is full, they neatly line up all the seeds they fit in their beak. It is really something to watch.