This fledgling House Finch, notice the baby feathers on its head and breast, has been flying around this feeder for a couple of days now trying his best to land properly. It gets confused by the window but is slowly figuring it out. Its father was showing him where the free meals are. We put the feeder on the window, as well as other deterrents, to keep the birds, especially the young ones, from smashing into it. We get to enjoy them close up and they don't get injured. Win-win.