Possible Clues:

• Pleasing scrap of gossip
• Bird got teeth into morsel
• Morsel
• 22 20, nipple?
• Morsel bird has chewed
• Dainty bird (a young woman, crudely)
• Morsel among the birdseed?
• Bit of grub accounting for one disease found in bird
• Bird nibbled tiny amount of food
• Piece of gossip from bird had an impact