Here we are in mid-February, and with the snow flying and storms raging, you’d think we’d be done with finding new rare birds overwintering here on the Cape and Islands. Fall migration, which brings most of our rare birds, seems a distant memory. We scoured the landscape during the Christmas bird counts, the hotspots have all been birded countless times, and all the rare feeder birds have been called in and documented. Or at least one would think so. But one would be wrong, because wacky birds that we have somehow missed continue to turn up each week.