What was Fredrick Douglass' job as a young child?

From the text:

I was not old enough to work in the field, and there being little else than field work to do, I had a great deal of leisure time. The most I had to do was to drive up the cows at evening, keep the fowls out of the garden, keep the front yard clean, and run of errands for my old master's daughter, Mrs. Lucretia Auld.