There are a few things you can do to keep ants away from your bird feeder. You can use a baffle, which is a device that hangs below the feeder and prevents ants from climbing up to the food. You can also use a sticky substance, such as petroleum jelly or Tanglefoot, to coat the pole or platform of your feeder. This will make it difficult for ants to climb up. Additionally, you can hang the feeder in a shady spot, as ants are less likely to be active in shady spots. Finally, be sure to clean the feeder regularly with soap and water to remove any food particles that may attract ants.