How can I stop Blue Jays from chipping the paint off of my house?

Blue Jays have been observed chipping and carrying off house paint, especially in the northeast when snow is covering the ground. Researchers believe the Blue Jays are interested in the calcium found in paint, especially light-colored paint, and are stockpiling the paint for spring when they will need extra calcium for egg laying. Providing an alternate source of calcium, such as crushed eggshells, seems to stop the behavior. Learn more about this behavior and the experiences of some FeederWatchers.