Twenty One Turkey Vultures

As I rode my bicycle down a country road, I noticed ahead of me a large collection of turkey vultures on the ground in a pasture and in the air above.
The rider ahead of me spooked those on the ground into the air.
I stopped to watch and realized the birds in the air were in a rising thermal air current gaining altitude effortlessly.
As I watched, the thermal column moved over me bringing the spiralling the vultures with it.
Looking straight up into a spiral of circling vultures was a new experience for me.