Regarding Paul O'brien's seed-eating YTWA, we had one check out our thistle feeder this year, which i had never seen before (ate nothing-couldn't get a handle on that upside-down thing). They often glean our screens, presumably eating bugs or gathering spider webs. 2 years ago we had a Prothonotary protecting our feeder from other birds for several weeks. He was not shy about attacking just about anything that dared to show up. danny bystrak jug bay