Nitrogenous Waste in Birds and Reptiles: Uric Acid. Birds, reptiles, and most terrestrial arthropods convert toxic ammonia to uric acid or the closely related compound guanine (guano) instead of urea. Mammals also form some uric acid during breakdown of nucleic acids.
Flamingos or flamingoes /flÉËmÉªÅÉ¡oÊz/ are a type of wading bird in the family Phoenicopteridae, the only family in the order Phoenicopteriformes. There are four flamingo species in the Americas and two species in the Old World. Play media.
The flamingoes have webbed feet, very long legs, and a beak bent down as if broken. Their color is usually red or pink. The American flamingo is P. ruber; the European is P. antiquorum. Origin: [Sp. flamenco, cf. Pg. flamingo, Prov. flammant, F. flamant; prop. a p. pr. meaning flaming.