NFS sunflower heart are premium grade produced from black oil sunflower seeds which have the highest oil content for a great energy source. NFS sunflower heart are valuable high in energy and nutritious bird food. With a wide variety of wild birds that love them, sunflower hearts are a totally versatile and easy seed to feed. Best of all, as they have had the husks removed, the birds will eat the whole seed, leaving little if no mess around your feeders. NFS sunflower heart are handpicked by professionals and are ideal for year round feeding of birds like sparrows, parakeets, parrots, finches and range of grain and seed eating birds. NFS premium quality no mess sunflower hearts are bird safe and bird feeder friendly. Nature Forever society products are proudly made in India. They support conservation of native Indian flora and fauna.