Most backyard enthusiast want to attract the greatest variety of birds to their outdoor space and one of the easiest ways to do that is by feeding the right seed. Some of these freeloaders will flock to a certain type of seed while others just have a quick look and move on. The seed that you put out, will depend on the time of year, the location in relation to your surrounding vegetation, the hardiness zone, the latitude and who you are looking to show up for dinner. There are several mixed blends of seeds as well as several levels of presentation. There are even special types of seed you want to avoid if you are looking to keep certain critters away.