Hi just wondering if anyone has any ideas how to discourage crows visiting my birdfeeder? I have a small bird feeder hanging off the clothes line. They swarm the feeder in groups of 6-10 and scare off all the other smaller birds. I have to constantly refill the feeder and they have broken the feeder twice (had to buy two new ones). I tried a different feeder, a perspex one with feed holes at the bottom but the crows attack that just as easy. At first I didn't mind but now they have totally taken over the feeder and I don't get any smaller birds anymore. Any thoughts? Thanks.