Flournoy Ranch images - Joel Sartore

Workers at the Flournoy Ranch in northern California load up hay on a cold January day.

This calf is being taken back out to the field for reintroduction to its herd. (Flournoy Ranch near Likely, CA.)

Bill Flournoy carries a calf to his truck — he’ll leave it there for a while to keep it warm.

This calf is being taken back out to the field for reintroduction to its herd. (Flournoy Ranch near Likely, CA.)

Workers at the Flournoy Ranch in northern California use axes to break the ice from a watering hole.

Workers at the Flournoy Ranch in northern California load up hay on a cold January day.

Workers at the Flournoy Ranch in northern California pitch hay from a truck for cattle on a January day.

Workers at the Flournoy Ranch in northern California load up hay on a cold January day.

National Geographic Photographer and Speaker