birds that come to feed will depend upon the type of feed you use. there are different mixes available. it is recommended that you buy these commercial feeds, and avoid table scraps as they are likely to attract animals other than birds. for the same reason, you will want to use a commercial bird feeder. they are specifically designed to only feed birds.
the beautiful thing about growing herbs is that many of them can be grown in a simple clay pot. this means you can grow several different herbs at once. these herbs can be used in your cooking. the key to making these plants attractive is the method you 