Weban intermediate in the biosynthesis of uric acid. xanthine. a precursor of uric acid found in many organs of the body. purine. any of a class of organic heterocyclic base containing … WebSep 24, 2024 · Prevailing wisdom ranks uric acid as the primary ingredient in bird excrement which is comprised mostly of urine. (Birds release both solid and liquid waste …

Why Is Bird Poop White? Britannica

Weban intermediate in the biosynthesis of uric acid. xanthine. a precursor of uric acid found in many organs of the body. purine. any of a class of organic heterocyclic base containing fused pyrimidine and imidazole rings; they are components of nucleic acids. guano. the excrement of seabirds, cave-dwelling bats, pinnipeds, or birds more generally ... WebSo you are correct that birds primarily produce their nitrogenous waste in the form of uric acid, rather than urea or ammonia. Ammonia is toxic in part because it raises the pH of the bodily fluids. Urea actually requires far less energy to produce than uric acid, but uric acid has the advantage of reducing water loss and is less toxic. shutter application

UCSB Science Line

WebBoth waste products are eliminated simultaneously through the cloaca. While mammals excrete nitrogenous wastes mostly in the form of urea, birds convert it to uric acid or guanine, which reduces water loss in comparison. Uric acid thus forms a white sticky paste. So the white part is actually bird pee; it is the dark center that is the poop. http://scienceline.ucsb.edu/getkey.php?key=5614 WebLike birds, reptiles excrete uric acid and also pay a high energetic price. Presumably the excretion of uric acid originally evolved in both groups to permit the laying of terrestrial … the painful shoulder part 1