Notice in the images below, how the young female (I think) backs into the water from her position on the rock. All the rest is just plain fun. Juveniles bathing and playing and sharing that time together.
Often when they visit the birdbath, they will interrupt their visit and fly to a perch for a few minutes, possibly to affirm the safety of the area. If all seems safe, back they come, not quite finished with their enjoyment of the water. .
Links and Resources:
This is the thirteenth post in my series on this bluebird family. To see all of the posts visit the link, bluebird family. The most recent post will be first. Click "older posts" at the bottom of the page to see earlier posts. You may also enjoy Wishing Upon a Bluebird at Vickie's Sketchbook and my June article for Wild Birds Unlimited, Having Fun with Bluebirds.
For articles leading up to the bluebird family posts, visit my Wild Birds Unlimited articles:
Find instructions for making nest box predator guards by clicking the link. These guards have worked to keep the 9" arm of a raccoon out and have prevented prowling cat predation, as well as snakes. A 7-inch depth is recommended. You may also find a version of these guards at the Wild Birds Unlimited store nearest you.