I had a cheap green seed feeder in my tree but the perches that screw in came loose and fell off, I couldn't find them anywhere so I decided to buy a new feeder and spent £20 on a brown one. The new one is different from the other one in that instead of the perches it has a circular plate to land on which also catches the seed. Well it has been up for a week now and the only bird to land on it has been a robin, all the other birds totally ignore it. They obviously have no taste for expensive things or dont like brown feeders. I am going to give it a few more days and then go out and buy a cheap green one.