small and funny wagtail bird is known to almost everyone.You can see it all year round.The area of its habitat is enormous, stretching almost from the Arctic to the deserts and Asia.It occurs even in Iceland and China.By the way, the wagtail - a migratory bird or not?
This is not an idle question, because in some territories it is considered sedentary, while others argue that every winter the Ptah somewhere flies.
In this issue and in fact is not so simple.Scientists believe that its triumphal march around the world wagtail start somewhere in Africa.Yes, and especially all the population say that it is happening somewhere in the south.So who is this Wagtail: migratory bird or not?
Ornithologists say that the greater part of its vast range, this bird makes regular winter flights.But in Southern Europe and Africa, there are populations that nowhere in the winter do not fly away.
Question seasonal change places can occur also because among this kind of a high percentage of polymorphism, when birds from different places look quite different.They can be confused with other species, and why the dispute arose.
In our country, the wagtail - migratory birds that returned home during the beginning of opening of the rivers of ice.Usually it happens somewhere in the end of March.
way, immediately after the arrival of these birds like to keep near the rivers and ice-going thaw, making the people jokingly say that it breaks the ice wagtail.Migratory birds or not - we've already figured out, but what happens in the transition zones of Central Asia?
We do not inadvertently focused attention on this issue.In those regions the climate is very harsh (as strange as it may sound).The fact that the summer months are often characterized by the stifling heat and the scorching sun, while winter may, on its severity impress even the native Siberians.
striking example - Mongolia.Summer temperatures can approach 60 degrees Celsius in the winter to go far down the mark of 20 degrees.Since behaves wagtail bird (which has a photo in the article) in such conditions?
It was then she shows all its uniqueness!In the same Mongolia, there are almost a dozen subspecies of the parent birds, which, by their appearance and habits differ much from him.
So, some of them are almost endemic, to leave their homes only in the case of extremely harsh winters, and some wagtail make long-distance flights, even in summer, it is easy to form new hybrids.
only quality that unites all the members of this unique species is their strange attraction to man and man-made landscapes.If the vicinity of the habitat of the area there is a large city, almost all birds will settle in his features.
By the way, there is another oddity: in large settlements wagtails often change their habits, and then the part of the population, even in winter remains at the same location.Of course, this can be explained by the wealth of food resources, but that other birds do not do that!
Here's a she, the wagtail.Migratory birds or not say with certainty is difficult, as it can affect a number of factors.
