4 chambers
There are four chambers in a bird's heart: the left atrium, the right atrium, the left ventricle, and the right ventricle--just like in a human. Most warm blooded animals (birds and mammals) have this cardiovascular system setup in their hearts. If it interests you, the respiratory systemic anatomy is completely different in a bird than in a human.
Plants do not have hearts. Only animals have hearts and most have four chambers and a few have three.
There are 4 chambers to the heart.
Their are 2 heart chambers.
A shark heart has two chambers.
Penguins have 4 chambers in their heart.
The bird's heart has 4 chambers.
The heart of fish have two chambers. The heart of reptiles and amphibians have three chambers. The heart of mammals have four chambers.
A perch has two chambers in it's heart.
There are 4 chambers in a bird's heart.
A sheep heart has four chambers.
There are four chambers in a human heart.