A Parrot

My parrot is emerald green,
His tail feathers, marine.
He bears an orange half-moon
Over his ivory beak.
He must be believed to be seen,
This bird from a Rousseau wood.
When the urge is on him to speak,
He becomes too true to be good.He uses his beak like a hook
To lift himself up with or break
Open a sunflower seed,
And his eye, in a bold white ring,
Has a lapidary look.
What a most astonishing bird,
Whose voice when he chooses to sing
Must be believed to be heard.That stuttered staccato scream
Must be believed not to seem
The shriek of a witch in the room.
But he murmurs some muffled words
(Like someone who talks through a dream)
When he sits in the window and sees
The to-and-fro wings of wild birds
In the leafless improbable trees.