These kernels are produced from sunflower seeds. This means they are from the sunflower which contains high levels of oil and therefore energy for wild birds. The Sunflower hearts are sunflower seeds with the husk or shell remove, with the benefit of no discarded shells to clear up. The seeds can be fed from tube seed feeders, bird tables or the ground throughout the year and are suitable for a wide range of wild birds such as the Blackbird, Blackcap, Blue tit, Brambling, Bullfinch, Chaffinch, Coal tit, Dunnock, Goldfinch, Great tit, Great spotted woodpecker, Greenfinch, House sparrow, Long-tailed tit, Nuthatch, Robin, Siskin, Song thrush, Starling, Tree sparrow, Woodpigeon, and Wrens.Explore more of our range, we have a huge variety of products in stock. Have a query or can\'t find something you\'re looking for? We receive new deliveries every week, so if the item you wish to purchase is currently out of stock, please contact our Customer Services Team and we may be able to reserve the items you require.1 x Listed item supplied onlyColours may vary slightly