Possible Clues:

• Bird covered in detergent returned
• Bird biting top off rue
• Characters from 'Poltergeist' backed this bird
• Greet the bird
• Bird welcome when the heart is uplifted
• Bird that won't start to apologise
• Bird's back covered in detergent
• Mourn decapitated bird
• Source of a feather in one's cap?
• Somewhat uppity character getting the bird