Dovecotes or such turrets are in plenty in the agricultural vicinities of Esfahan. These have been built with the purpose of collecting the excreta of these birds. The turrets are topped with domes with crevices so as to facilitate the access and exit of these birds, and guide them to their nests within this structure.
These are distinct examples of Iranian architecture and have been built of brick and gypsum. At present there are over 100 such dovecotes in Esfahan province.