Although birds excrete uric acid, it is changed into other compounds by their cloacal microbiota before excretion, and no uric acid was noted in the bird droppings.

Evidence in favour of his suggestion that a circulation of base takes place, as well as of water, in the excretion of uric acid, can, it seems to me, ...

Uric acid is also found in the feces of birds, reptiles, and some mammals. Ukrainian–Austrian chemist Ivan Horbaczewski reported an early synthesis of uric acid from glycine in 1882. More recently ...