More to explore:
this does work my mother-in-law does this and she only has to clean her bath once a season
copper pennies before 1982 help keep algae from growing in bird bath...interesting, I will be trying this!
copper pennies before 1982 help keep algae from growing in bird bath
elegant upcycled birdbath
Turn an everyday birdbath into an instant, elegant water feature.../
Bird Bath and Irises
birdbath from old sink.
Shabby Chic Decorating Ideas for Porches and Gardens : Home : DIY
Stacked Stone Bird Baths
A metal birdhouse.
Grow roses with the help of potatoes ~~