What Are These Things?

An elderly lady, who lived in a remote town, was not very worldly.

She traveled to one of the most fashionable suburbs to visit her niece and husband.  Just down the way was a very well known golf course.

On the second afternoon of her visit, the elderly lady went out for a stroll.

Upon her return, the young niece asked, "Well, Auntie, did you enjoy yourself?"

"Oh, yes, indeed," said Auntie, beaming.  "Before I had walked very far, I came to some beautiful rolling fields.  There were  a lot of people around, mostly men.

Some of them kept shouting at me in a very rude manner, but I felt it best to ignore them.  There were four men who followed me for a while,  making curious excited barking sounds.  Naturally, I ignored them, too.  Oh, by the way," she added, as she held out her hands, "I found a lot of these curious little round white balls, so I picked them all up and brought them home hoping you could tell me what they are."