Joanne - Robins have been overwintering here for a few years now.. kinda depressing thinking that our area's warm enough in the winter for robins now when, about 5-6 years ago we had almost no birds during the winter. Now I have purple house finches, chickadees, black billed magpies, blue jays, crows, dark-eyed juncos, and goldfinches overwintering. Before, all I would have would be mourning doves.. now I got pretty much all the summer birds in the wintertime too. Most of my plants are still 100% dormant, but my trees are still very flexible, so that's a good thing (means I won't lose them). I don't think I'll have a lot of winterkill on my roses.