Miniscule, just 9-10 cm long, these zebra finches swarm in their thousands.
On a hot day, any where with water is a finch magnet.
Although I do not have the pictures, these places are also a falcon magnet. They are looking for, and normally finding, lunch. A sudden shadow and panicked finches fly everywhere. For most it is a clean getaway. For one, it is an unlucky day.
Waiting their turn to drink thousands more perch in nearby trees.