Birds need fresh water for drinking and bathing in winter. An elevated birdbath will attract a range of songbird species, but it should be refreshed with tap water at least twice a week. Immersion heaters are available to prevent freezing. If possible, place a feeder near shrubbery to provide cover against cats and hawks.
Published: January 27, 2014 3:00 a.m.
Keep bird baths going in winter
– Adrian Higgins, Washington Post