We have blue jays at home too. They too stay the winter. Like you, we don't feed them in the summer, but just put the feeder back up. One of the jays seems to be stock piling, the other eats and eats! I understand it's to be a mild winter. I'm glad! As long as we get moisture this year... last year was pretty minimal for snow fall. Made for great driving with the littles throughout the winter, but made people really nervous for hay.