Can't identify them, but someone's heading north. Maybe to Mono Lake? (MB) Know it isn't part of the daily commuters to the transfer station, those keep to a lower altitude and a casual flock configuration. These are much higher and organized in the typical "V" migration pattern.
Had dinner with friend Ellie and Photographer Sam Abell (MB) Read about him: http://en.wikipedia.org/wiki/Sam_Abell Meeting him equates to winning the lottery. Wonderful day listening to him speak of his many experiences as a photographer.