There came a Wind like a Bugle -
It quivered through the Grass
And a Green Chill upon the Heat
So ominous did pass
We barred the Windows and the Doors
As from an Emerald Ghost -
The Doom's electric Moccasin
The very instant passed -
On a strange Mob of panting Trees
And Fences fled away
And Rivers where the Houses ran
Those looked that lived - that Day -
The Bell within the steeple wild
Dickinson  personifies  the fences when she writes that they “fled away”. This makes it seem as if the fences made the conscious decision to flee, when, once again, she may be describing what the wind did to the fences caught in the storm.
There came a Wind like a Bugle