Recessed bowls are also a great way to attract birds - they'll love having fresh water and the design provides a safety ledge for drinking. Track rays and shadows with a decorative sundial. Birdbath designs are also functional with a proper bowl depth and a rim for perching. Celebrate each hour of the day with a decorative, themed sundial! Capture hummingbirds in mid-flight or enjoy a dragonfly permanently poised in the sun.