It appears like this cow is flying out on the clouds as it must heard about the cold temperatures coming so I bet it is heading south.
A weather vane is an instrument for showing the direction of the wind. The first “true weathervane” is often thought to be a bronze structure that was erected atop the Tower of the Winds in Athens in 48 B.C. by Greek astronomer Andronicus. Since that time, there has been various designs and shapes of the weather vanes.
Cow Weather Vane
The weather vane that we have was on our old house built in 1906. Now it is on the old milk house.
Good information.