Dovecote

A dovecote or dovecot /ˈdʌvkɒt/ (Scots: doocot) is a structure intended to house pigeons or doves. Dovecotes may be free-standing structures in a variety of shapes, or built into the end of a house or barn. They generally contain pigeonholes for the birds to nest. Pigeons and doves were an important food source historically in Western Europe and were kept for their eggs, flesh, and dung. In Scotland the tradition is continued in modern urban areas.

In some cultures, particularly Medieval Europe, the possession of a dovecote was a symbol of status and power and was consequently regulated by law. Only nobles had this special privilege known as droit de colombier. Many ancient manors in France and the United Kingdom have a dovecote (still standing or in ruins) in one section of the manorial enclosure or in nearby fields. Examples include Château de Kerjean in Brittany, France, Houchin, France, Bodysgallen Hall in Wales, and Muchalls Castle and Newark Castle in Scotland.

The oldest dovecotes are thought to have been the fortified dovecotes of Upper Egypt, and the domed dovecotes of Iran. In dry regions, the droppings were prized by farmers and were thus collected for fertilizing their arid fields.

The presence of dovecotes is not noted in France before the Roman invasion of Gaul by Caesar. The pigeon farm was then a passion in Rome: the Roman, generally round, columbarium had its interior covered with a white coating of marble powder. Varro, Columella and Pliny the Elder wrote about pigeon farms and dovecote construction. In the city of Rome in the time of the Republic and the Empire the internal design of the banks of pigeonholes was adapted for the purpose of disposing of cremated ashes after death: these columbaria were generally constructed underground.

...
Wikipedia