National Audubon Society Signature Harvest Wild Bird foods were designed to help birds and people live side by side in the beautiful outdoor environments we share. Signature Harvest foods represent the highest quality available for our songbird companions while remaining economical enough to enable year-round feeding, which enhances the health of our local birds. – Premium blend of finches favorite seeds- sunflower chips and nyjer (thistle) – No mess – no hulls – Attracts finches, buntings, titmice, chickadees and more – Use tube feeders with small ports, hopper or platform feeders