Caring for Winter Birds

Prevent birds from crashing into your windows.
If you have a problem with birds crashing into your windows, try placing sun ornaments and other objects in the window to let them know they can't fly through. Avoid hanging plants in front of the window - this is just inviting trouble. If a bird has a mishap, place him in a well-ventilated box in a warm area to recover. He may only be stunned. Never handle birds or any other wild animal with your bare hands.

Water for Winter Birds
Birds need just as much water in winter as they do the rest of the year. In warm climates, keep clean, fresh water in your birdbaths year round. In cold climates, break out any thin sheets of ice that form on the surface of the water in your bird bath as often as possible.

From GardenGuides.com