I was watching this little guy from my kitchen window yesterday. He was quite frenetic, flying and landing all over the place, but intent on this bird feeder for some reason. After watching him for awhile, it became clear that he wanted to build a nest in the bird feeder! It was still full of seeds, though and the rope that holds the lid in place seemed to bother him the most. He kept yanking on the frayed rope end, trying to pull it out, but after about 20 minutes, he gave up on that and started bringing twigs to the feeder and putting them inside. On his departure, he would bring a sunflower seed out of the feeder, fly to the deck railing and spit the seed out onto the ground! Cleaning house, I guess! Too funny! I hope his intended appreciates his efforts and, as for me, I am completely happy to let him have this feeder as a home this summer. I can hang another someplace else!