(1) Songbirds also live here, including the snow bunting, raven, American tree sparrow, and hoary redpoll .(2) Flocks are common outside of the breeding season, and American Goldfinches often flock with redpolls and Pine Siskins.(3) Seeds of several native species feed siskins and redpolls .(4) Since the preliminary results lean towards viral that means that the redpolls and finches are passing a virus to each other rather than getting sick from eating directly out of the feeder.(5) Last winter we had some common redpolls , this winter they are back in force so keep an eye out for these small guys a the feeder.