What are the effects of bird droppings on the patina of stone animal sculptures?
Bird droppings can significantly alter the appearance and integrity of stone animal sculptures, particularly their patina. The acidic nature of bird excrement accelerates corrosion, leading to discoloration, etching, and surface degradation. Over time, this can weaken the stone's structure, making it more susceptible to weathering. Regular cleaning and protective coatings are essential to preserve the sculpture's original beauty and longevity. Understanding these effects helps in maintaining outdoor art and preventing irreversible damage.
