Sunflower hearts are by far best for garden birds, as a) more species can eat the seed because the husk has been removed, c) less energy is used by species which can remove the husk because they don’t have to, and c) there’s less waste to clear up compared to black sunflower seeds, which also reduces the risk of disease in your garden birds.
It’s fair to say that sunflower seeds bird food is the most popular and successful of all garden bird foods, with our range being made up of three variants: sunflower hearts, sunflower heart chips, plus black sunflower seeds. Sunflower hearts are simply black sunflower seeds with the husk removed, with sunflower heart chips, as the name suggests, being small pieces of sunflower heart.
Of the three variants of sunflower bird seed, sunflower hearts are the most versatile and will be eaten by the most species in your garden. This is because softbill species of bird such as Blackbird and Robin can’t remove the husk from black sunflower seed, but can easily swallow sunflower hearts whole - as they can also do with sunflower heart chips. Most species of finch and tit will eat sunflower hearts and black sunflower seeds, and can easily remove the husk from the latter.