This bird has been hanging around with our sparrows and in and out of their nesting post. ( A T-shaped clothes-line pole) He has the wings and tail the colour of a sparrow, his body is mainly white, his beak seems more like a finch. He is the same size as the house sparrows he is hanging around with. We have never seen anything like him before. Here is a pic that Bob took of him. He was a fair distance away as he seems more skittish than most of the sparrows we have around here. Any help would be appreciated.