Great Gray Owl Hunting
It is looking and listening for voles over or under the snow in the field below. This one appears to be gliding here probably about 20-25 feet above ground. If it perceives some evidence of prey below, it would normally swivel is wings in a braking position to reduce altitude and partially or fully lower its legs.
If it became more convinced, it would probably hover a bit; crash into the snow in a "snow dive", or land and pursue the vole from the ground.
Great Gray Owl Hunting
It is looking and listening for voles over or under the snow in the field below. This one appears to be gliding here probably about 20-25 feet above ground. If it perceives some evidence of prey below, it would normally swivel is wings in a braking position to reduce altitude and partially or fully lower its legs.
If it became more convinced, it would probably hover a bit; crash into the snow in a "snow dive", or land and pursue the vole from the ground.