it is because birds have uric acid level becomes too high in their blood streams therefore it causes their kidneys problems and could lead them to a serious time for them
Do you mean "how do birds benefit from having kidneys?" If so, the question has already been well-answered here on WikiAnswers.
it has 2 kidneys
kidneys
All vertebrate animals have kidneys. Although we have never found dinosaur kidney fossils (soft tissue rarely is preserved), dinosaurs were vertebrates, so they definitely had kidneys. More proof is that birds, their descendants, have kidneys.
Birds don't have a bladder
The kidneys are a reddish browny colour. The same type of colour as a kidney bean that you can eat. The kidneys are a reddish browny colour. The same type of colour as a kidney bean that you can eat. The kidneys are a reddish browny colour. The same type of colour as a kidney bean that you can eat. The kidneys are a reddish browny colour. The same type of colour as a kidney bean that you can eat. The kidneys are a reddish browny colour. The same type of colour as a kidney bean that you can eat. Red I think
They have froggy kidneys
It depends on what type of birds you are talking about...
It depends on which type of bird the egg belongs to and whether or not the mother is present to care for the egg.
Yes as a matter of fact they do. Male birds have two bean-shaped testes just above their kidneys.
ducks and others
Birds with mutual dependence