Flamingos are a type of wading bird. There are four flamingo species in the Americas and two species in the Old World. Flamingos often stand on one leg, the other leg tucked beneath the body. The reason for this behaviour is not fully understood. Recent research indicates that standing on one leg may allow the birds to conserve more body heat, given that they spend a significant amount of time wading in cold water. However, the behaviour also takes place in warm water. As well as standing in the water, flamingos may stamp their webbed feet in the mud to stir up food from the bottom.
Flamingos are very social birds; they live in colonies whose population can number in the thousands. These large colonies are believed to serve three purposes for the flamingos: avoiding predators, maximizing food intake, and using scarce suitable nesting sites more efficiently. For the first six days after the chicks hatch, the adults and chicks stay in the nesting sites. At around seven to twelve days old, the chicks begin to move out of their nests and explore their surroundings. When they are two weeks old, the chicks congregate in groups, called "microcreches", and their parents leave them alone. After a while, the microcreches merge into "creches" containing thousands of chicks. Chicks that do not stay in their creches are vulnerable to predators.
Утвердительные:
1. I wake up at 8 a.m. every day.
2. She usually goes to school on weekdays.
3. He walks in the evenings.
4. We always get up early in the morning.
5. They sometimes have dinner at 7 p.m.
6. Her cat never sleeps at night.
Отрицательные:
1. I am not a student.
2. My working day does not begin at 7 a.m.
3. His wife does not always hang up with her friends.
4. He does not wear dark clothes.
5. Our teacher does not eat after 8 p.m.
6. They do not swim in the sea on Mondays.
Вопросительные:
1. How do you feel?
2. When does your mum run?
3. Does he understand his parents?
4. She teaches the English language at this school?
5. Does her dad ride a bike every day?
6. Do you read newspapers?
Объяснение:
