There's a little bird I first noticed back in the late fall that would come to the feeder - roly poly little guy -- and I came to realize he was missing part of the top of his beak. The feeder makes it possible for him to get under the seed and eat it, and boy, does he eat! He also has some sort of tumour on his back. I watched for him every day, happy to see him when he showed up. Well, I hadn't seen him in at least six weeks, and figured the winter had got him. I was so glad to look out at the feeder just now and see his funky little profile! He's still roly-poly and still eating up a storm.