Birds are surprisingly selective in their eating habits, as you will quickly find. They seem to have a sixth sense for the most expensive kinds of food. Watch a blue jay carefully sorting through a tray of mixed grains. What is he after? Sunflower seeds, of course! And at a few cents per pound. None of this nickel-a-pound chick feed for him! This is rough on the pocketbook and should not be encouraged by lavish feeding of high priced seeds, but do not berate the jays too much. They are the watchmen of your garden. They will be the first to see a hunting cat or a circling hawk, and give noisy warning to your other friends.
And do not begrudge the pesky little English sparrows what they eat, either, for they will be the very first birds to find your feeding stations, and will lead other and more shy birds to them. These two, the jays and the English sparrows, are pests in many ways, but they repay you by rendering good services.