The purpose of this article is to show you how amazing and mysterious is bird migration.
It is well-known that most birds have to migrate in winter when the temperature goes down but there are other unknown reasons.
Of course low temperature is a main and significant reason, above all due to lack of food.
In the winter season, ponds, lakes and rivers are frozen; as a result birds don’t have any food.
This is the true of it: They migrate in order to eat.
Next, they begin a amazing journey full of difficulties.
For instance: They must deal with the physical geography for which some birds aren’t prepared like songbirds; other birds aren’t prepared for humid climate and wet currents, like hawks.
Finally, when they need to land some areas or territories are occupied, that is why they must run thousands of miles plus.
Do you know how they find the way and they never get lost?
Their guides are the sun, the stars, the magnetic field, odour and landmarks.
As you can see wildlife is always surprising.