My grandparents told us if you sprinkled salt on a bird's tail, it would follow you home. Of course this was family lore intended to get us out of the house.
There is a really cute picture of my cousin and I, both about 3, out in the tall grass of the 'back 40' holding cut-glass salt shakers, intently looking for birds.
A childhood belief about salt

others believed things like this
- I used to believe that you could catch a bird by putting salt on it's tail— Eli
- I thought that veruca salt was green salt— Ninny
- I used to think that salt grew on salt trees.Anon
- I used to believe that if you put salt on a dead fly it would make the fly come back to life.— Cody
- I used to believe that salt would dry up all of my blood because my mother told me so.— Charlotte H
- I was told that your belly button is where you put salt when you eat apples in bed.— Shurnuff