Those black things in the sky are birds I have witnessed this once before in 2020 here in the ???? city Chapman Elementary School to be exact one hour before sunset thousands of Vaux’s Swifts gather overhead as they prepare to roost for the night this population has been returning to Chapman since the 1980s and is one of the largest known roosting sites of migrating Vaux’s Swifts truly an Incredible sight to witness brought by our amazing mother Nature