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→‎The Basics of Bird Anatomy: respiratory system of the birds. They have a high oxygen demand because of the high metabolic rate. This means that they have a respiratory system that is much more ef
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When it comes to bird anatomy, most pet bird owners have no clue about how the organs work and how the skeletal system is formed. You might not thing this topic is interesting, but it is very complex, and if you are going to know about birds, you are going to have a lot to learn!  
 
When it comes to bird anatomy, most pet bird owners have no clue about how the organs work and how the skeletal system is formed. You might not thing this topic is interesting, but it is very complex, and if you are going to know about birds, you are going to have a lot to learn!  
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First of all, you have the respiratory system of the birds. They have a high oxygen demand because of the high metabolic rate. This means that they have a respiratory system that is much more efficient than the one a mammal or reptile has. They can ventilate their lungs much more easily, and the lungs are the sites of gas exchange.  
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First of all, you have the respiratory system of the birds. They have a high oxygen demand because of the high metabolic rate. This means that they have a respiratory system that is much more efficient than the one a mammal or reptile has. They can ventilate their lungs much more easily, and the lungs are the sites of gas exchange.  
    
When it comes to their circulatory system, birds have a four-chambered heart, which is the same as most mammals. This means that they can get nutrients to their body as well as oxygen very easily. The bird’s heart is going to beat much more quickly that the mammals heart, due to what they have to do to survive.  
 
When it comes to their circulatory system, birds have a four-chambered heart, which is the same as most mammals. This means that they can get nutrients to their body as well as oxygen very easily. The bird’s heart is going to beat much more quickly that the mammals heart, due to what they have to do to survive.