In addition, the dilution effect occurs when there is a large flock. But it can’t explain how the birds get the information they need to move in synchrony and avoid a predator. Working together, they can decrease the wind resistance caused by air travel. Do Birds of a Feather Flock Together?, a previous Wonder of the Day, explains why! This suggested the birds fly in these large groups to protect themselves from predators. Read through it with a friend or family member and enjoy learning more about groups of birds. Why do groups of birds fly together? A thermal is simply a rising column of warm air forming from the uneven heating of air near the ground. These large groups can protect birds in a number of ways. That’s why they are seen in groups, and all of them are flying in circles. At times multiple birds spot the same thermal and try to gain high altitude at the same time. Have you ever seen a murmuration in real life? Bruce Batt, chief biologist for the conservation group Ducks Unlimited, based in Memphis, Tenn., explains. Bird flocks are seen flying in circles in evening most often. birds fly in circles becaus one of their “bird friend” died i think thats why they fly in a circle for so many hours nicky1272000 ( 1 ) “Great Answer” ( 1 ) Flag as… ¶ This is the natural behavior of rock doves, the original precursor to the semi-domesticated urban pigeon. These birds live is flock-oriented colonies and enjoy taking group excise together during part of the day. Birds have a unique ability to take advantage of a weather phenomenon known as thermals. If you have, then you must have noticed that many groups fly in a shape that basically resembles the English alphabet letter “V” (See the picture below). Even if birds don't take part in a murmuration, they might flock together in smaller groups. GETTY. “All the birds massed together create sensory overload for the predator,” notes Williams. Self-interest by itself may explain many of the observed dynamics of flock motion, such as density. For the same reason that fish swim in schools, birds fly in flocks. Have you ever noticed a large group of birds flying high in the sky? The linear flight formations of migratory birds are called echelons. Check it out! As they do, natural selection dictates that the birds least able to hang with the group are most likely to be caught by predators. There are many benefits to flying as a flock and in specific formations. This is one of the most beautiful scenes before the sun goes down. WONDER why? It can be difficult for a predator to pick out individual prey in large groups. As the air warms, the less dense warmer air begins to rise, creating an updraft column of air which continues to rise until it cools and falls back down to the earth. Birds flying in these zones can continue flying by putting less efforts.