Something Shivers

Something shivers in the night-
not from sickness, cold, or fright,
past the curtained moon that lights
all the world I can't make right.
Something dimly shines. My sight
darkening now what once was bright.
Close them 'til the pigeon's flight
lands them safe on wires who's height
makes me dizzy. I just might
stay and watch them.  Or I might
close the window. Tuck in tight,
pull the covers up, don't fight
what here shivers, what may bite.