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The best way to attract birds to your area is with food. The blue jay's diet mainly consists of plants, vegetables and nuts, though they also eat some insects. You will draw quite a few blue jays to your area if you offer a variety in a large platform feeder. Some of the blue jay's favorites include:  Peanuts (preferably shelled) Black and striped sunflower seeds Elder berries Cherries Dogwood Acorns Suet Make sure the feeding area that you offer the jays has plenty of perching available. You want a nice, large, open shelf – not an enclosed area. If you notice it’s covered in food or that part is inaccessible due to an obstacle of sorts (like a branch), adjust the shelf to make it easier for the birds to munch. If you really care about them you can clean off the sides of the house. You should clean up any left over berries, nut shells, egg shells, feces or dead insects on the bird perch or house to keep it clean. Blue jays prefer oak woodlands, though they can be found just about anywhere. However, if you want the best odds of getting blue jays, oak is the way to go.  Beech trees are a solid second as they too have nuts blue jays love feasting on. What’s more, having trees around will provide the blue jays shelter should they need it from inclement weather (which is especially important in winter). It’s good for nesting, too. Blue jays are some of the most intelligent birds out there and, in general, have great memories. If you only stock food intermittently, they'll likely find somewhere else to go that's more reliable. Keep the peanuts coming and you'll be logged into their brains as a good, consistent food source. Blue jays are generally quick to move. If the food disappears, they won't likely wait for it to show up. To keep the same ones around, you'll need to be on top of your blue jay game.
Offer the blue jays their favorite foods. Keep their perch clear. Consider planting an oak tree. Keep the food stocked.