water for birds and food economy

Bird baths quickly freeze over in winter so I resort to using seed trays (green) They are easy to de-ice by simply upturning them or running under kitchen tap. Blackbirds love them and I place three in different positions.

Also, as I have a fairly small feeding area I find that  click and turn stackable feeders allow me to offer a variety of foods with much less wasteage. They're cheap too so that I can afford to replace them whilst cleaning those in current use.