Looking straight up. Video available here.(18 MB WMV)
Something big lurking up there.
Purple Martin in flight.
Abode of Thor.
Empire of the air.
Through the gate.
Hammered by the anvil.
Self shadowing volumetric medium.
Pinking out as the sun drops.
Took 111 tries.
Almost 180 degree view.See the full size pano here.