The morns are meeker than they were,
The nuts are getting brown;
The berry's cheek is plumper,
The rose is out of town.

The maple wears a gayer scarf,
The field a scarlet gown.
Lest I should be old-fashioned,
I'll put a trinket on.   

by Emily Dickinso

Another......

In autumn when the trees are brown
The little leaves come tumbling down
They do not make the slightest sound
But lie so quietly on the ground
Until the wind comes puffing by
And blows them off towards the sky.

(I am not sure who this is by....) 

And here are some Fall/Halloween  pictures......