Possible Clues:

• Source of down clue I derived in part
• It's easy to get down from it
• Bird shows colour, that is when climbing
• Duvet fill
• Feel down about this bird?
• Duck, European red one, turning up
• Waterfowl Nereid erroneously swallowed
• Duck noted for down
• Occasionally behind peers: feel down about this?
• You can get down from it