It's the same as in all vertebrates, to pump blood around the body. This is necessary because the blood transports all the things the body cells need and takes away all their wastes.
Yes. Birds have four-chambered hearts.
Birds have four-chambered hearts that are similar in structure to mammalian hearts. Their hearts are efficient at pumping oxygenated blood through their bodies to support their high metabolic rates and active lifestyles.
PUMP
how are parts of birds & fish similar in structure & function
vertebrate's
Earthworms have five main blood vessels within their bodies. These vessels function in a similar function as would hearts in other animals.
No. Birds have only one heart, but they have four chambered hearts like all mammals and crocodiles do.
keeps it alive
Mammals and birds have four-chambered hearts.
yes their heart is much like a human heart in that aspect.
it pumps blood around the body
Like mammals, avians (birds, or members of the class Aves) have four-chambered hearts, consisting of two atria and two ventricles. By contrast, reptiles and amphibians have three-chambered hearts (two atria and one ventricle, sometimes with an incomplete septum in reptiles) and fish have two chambers (one atrium and one ventricle).