A chemical-free way to clean the birdbath is to use a small bag of silica sand from a local hardware store. When the birdbath starts to look dirty, wet a cloth, dip it into the sandbag and use it as an abrasive to scour the inside of the bath. To attract birds to a birdbath, drop a few colored marbles into the water. The marbles will reflect in the sunlight, which attracts birds. Also make sure there is a leafy tree or large bush nearby.
Birds like to know they can easily fly to cover if necessary.
To attract butterflies to a garden or yard, purchase a plant called summer lilac. Butterflies think this bush is delicious and are attracted to it. Other plants that attract butterflies are impatiens, marigolds, zinnia, black-eyed Susan and others. Make artificial nectar to attract hummingbirds by mixing one part cane sugar with five parts water. Dissolve the sugar in boiling water, cool the solution and then fill the feeders.