Thomas Jefferson's landholdings in Albemarle County totaled some 5,000 acres. To manage this vast estate, Jefferson divided the land into separate "farms." The area surrounding the planter's dwelling constituted the "home farm"; for Jefferson, this was Monticello mountain. Outlying lands were divided into manageable parcels known as "quarter farms" and were run by resident overseers.
On December 23, 2011, an informal Christmas Bird Count was conducted at Tufton Farm, in the fields surrounding the nursery of the Thomas Jefferson Center for Historic Plants. The Christmas Bird Count (CBC) is a census of birds in the Western Hemisphere, performed annually in the early Northern-hemisphere winter by volunteer birdwatchers. The purpose is to provide population data for use in science, especially conservation biology, though many people participate for recreation.