School of Birds

There's these bird the that fly near my tower. Locals keep them as pets. The keep them in cages and feed them and once let loose they will stay just above the house. The fly in formation right above the owners home. The circle gets bigger and bigger until they realize they are getting to far away from what they know. It's almost like they want to fly away but don't know where to go. I don't know what kind of birds they are. They're white with black under their wings. They're mesmerizing to watch. As they circle the whites of their back shimmer in the sun almost as if twinkling in the sun light. Like a school of fish they continually fly around and around in circles. A School of fish out of water.