Swift an Unique Animal

The swift is one of unique animals, because it looks for food and breed in the air. The swift has the structure of strong chest muscles, that enables it to fly for 40 hours without stopping. The ability to fly can reach 150 km/hour with wings like the crescent. It is a small bird with a forked tail. It has long and pointed wings. Its wings are 12 centimeter long but when they strech it can reach 25 centimeter long. It legs are just for creeping and adhering on the cave walls or cliffs, because they are very small and weak, it can't walk or jump.

The way how a swift makes its nest is also very unique. A pair of swift, male and female take turn to spread their saliva to the cave walls or the roof of the house where it wants to make its nest. this nest contains protein and minerals such as calcium, iron phosphorus, calium and natrium. In a day they can only make a nest. It takes 30 or 40 days to finish it. In the day season it takes 80 days. The shape of the nest is like a bowl  splitted into two. It lays 2 eggs and it breeds 3 to 4 times a fear cach time when the swift breeds it will thicken its nest to make it stronger. It feeds on insects which fly around the rice fields plantations and marshes, etc.