Possible Clues:

• Flyer feeding intravenously
• "Nevermore" quoter
• Large bird of the crow family
• Poe's 'ebony bird'
• 'So black it's behavin' madly, by the sound of it (5)'
• Big black bird
• Headless chicken or other bird
• It flies a welcome in the British Fleet
• Poe's corvine visitor
• Poetic bird of one word