My favorite flyers in these parts, the birds I most like to watch, are the turkey buzzards. They don’t have the noble heads or curved beaks of hawks, but they are unsurpassed in the air. Yesterday I went for a run to a swimming hole. As I got out of the water, a lone turkey buzzard was sailing in circles over me; riding updrafts effortlessly, no wing action at all. For some reason, he kept circling, and I kept watching. After a while I could almost feel myself flying, surfing the air currents. It was a magic 5-or-so minutes. Then another buzzard floated into the horizon, then another, until there were five of them circling. In this photo, look at the pattern of the “shoulders” and body to pure flight feathers.
-photo from https://sfcitizen.com/blog/tag/vulture/