Sunflower hearts are eaten by a lot of birds including –

• Blackbird
• Blue tit
• Chaffinch
• Coal tit
• Dunnock
• Goldfinch
• GreatTit
• Greenfinch
• House sparrow
• Robin
• Starling
• Woodpecker

Sunflower hearts are not eaten by

• Song thrush
• collared dove

Sunflower hearts are a good alternative to peanuts

So feeding sunflower hearts helps a lot of birds