I Saw Three Witches by Walter de la Mare Halloween poem

That bowed down like barley,
And straddled their brooms 'neath a louring sky,
And, mounting a storm-cloud,
Aloft on its margin,
Stood black in the silver as up they did fly.
I saw three witches
That mocked the poor sparrows
They carried in cages of wicker along,
Till a hawk from his eyrie
Swooped down like an arrow,
Smote on the cages, and ended their song.
I saw three witches
That sailed in a shallop,
All turning their heads with a snickering smile,
Till a bank of green osiers
Concealed their grim faces,
Though I heard them lamenting for many a mile.
I saw three witches
Asleep in a valley,
Their heads in a row, like stones in a flood,
Till the moon, creeping upward,
Looked white through the valley,
And turned them to bushes in bright scarlet bud.