What is the chief advantage of uricotelism over ureotelism?

The chief advantage of uricotelism over ureotelism is the reduced water loss during nitrogenous waste excretion. Uricotelic organisms, such as birds and reptiles, excrete nitrogenous waste in the form of uric acid, which is relatively insoluble in water. This allows them to excrete nitrogenous waste with minimal water loss, making uricotelism advantageous in environments where water conservation is critical, such as arid habitats. In contrast, ureotelic organisms, like mammals, excrete urea, which requires more water for excretion, making them less efficient in conserving water.