How To Make A Concrete Bath How Can I Attract Birds To My Bird Bath?

How can I attract birds to my bird bath? - how to make a concrete bath

I took a bath temporary increase in the courtyard of an old blanket of black plastic garbage at a high pot with a brick by it in place. The birds loved it, and the tail for him. He was placed in an open field and never wanted a temporary solution. Now I have a new one. It is shorter and the color of sandstone and concrete. I have found in the middle of my herb garden as a place of age, made a mark on the lawn. The birds do not come back. There is less air. That is why the birds do not come over? How can I bring?