Despite the fact that the level of organization of the birds are significantly lower than the mammalian central nervous system of these animals favorably with amphibians and reptiles.In particular, the brain of birds arranged much more difficult, allowing them to develop new types of activities, forms of behavior.Weight brain poultry is between 0.2 and 5% of its body weight.
cortex birds
The first thing you should pay attention to studying the brain of birds - originally developed cerebral cortex.Although it is arranged that is not very hard, it does not hinder the birds exhibit quite complicated behavior.It gives us an opportunity to draw conclusions that are not always the degree of development of the cerebral cortex is directly proportional to the development of a species.Moreover, studies have shown that this area of the brain in birds respond to a greater degree of intellectual development, and for the sense of smell.This is explained primarily by the fact that during the evolutionary process it has lost its original purpose and has significantly decreased in size.The behavior of birds is coordinated by a slightly different part of the brain, which will be discussed later.
brain regions bird
consider the main parts of the bird's brain.The forebrain of birds was inherited from their relatives reptiles.However, the function and structure of this part of the brain in animals are different.The bark of the forebrain of birds covered it mainly in the area of the side and top.We should also mention the lower part of the front of the brain called the striatum birds under.The upper region of the striatum - giperstriatuma - is responsible for the intellectual development of the birds, and noted that the more the bird developed this brain region, the more sophisticated forms of behavior it can demonstrate (it is not hard to guess that most developed giperstriatuma different budgies, canaries, crows).Removal of this part of the brain provokes the deterioration of the ability of birds to learning and memorization and recognition.Another well-developed part of the brain is the cerebellum of birds, providing the ability to make the birds while flying most complex movements.Diencephalon thus developed quite weak on the surface is small epiphysis.Spotting lobe of the brain developed fairly well, providing birds a well-developed vision, allowing them to navigate the terrain well.Another developed sensory organ is the hearing of any bird.The sense of touch, taste and smell are developed mainly nocturnal predators, other birds are represented medium.Also, the brain has 12 pairs of birds off of it cranial nerves.Linked to the spinal cord it using the medulla oblongata.
value of the brain of birds
similar brain structure of birds provides them with the development of complex and diverse forms of behavior as the ability to migrate, taking care of offspring, rational activity, good learning, building nests.
