Groups provide bird protection, aerodynamic benefits, say scientists


Scientists finally began to understand how and why birds gather.

In a new study published in the journal Evolutionary Biology on Tuesday, the researchers analyzed the mechanism of four group sharks of various sizes: dunlin, kasovalnovnik, American avocado, and marble.

After studying the video for almost 100 hours, the researchers identified a new flying formation called the V-junction formation. Scientists believe that formations give birds the superiority of aerodynamics and protection of predators.

V compound formation is a combination of grouping and V formation that is more familiar. The formation of clusters is a form of 3D clouds without a rigid structure. This is most common among pigeons and crows. The V Formation is a form of herd which is usually seen every fall and spring in the sky of North America when Canadian swans roam over their heads.

“Flying birds produce air that moves directly behind it, moving up and down just above the distance from the left and right wings,” said Tyson Hedrick, professor of biology at the University of North Carolina, Chapel Hill. “This advantage makes this air move upward, this is about positioning and birds in a simple V-formation and the formation of V-compounds that are correctly positioned for aerodynamic gain.”

To better understand the mechanism of formation of V compounds, Hedrick and his research partners have turned their videos into 3D computer models. With their digital reconstruction, scientists can measure the position of birds in each group and the airspeed and frequency of waving birds individually. The research team analyzed livestock with sizes ranging from 100 to 1,000 birds.

“We think we will find trends in flock organizations that are related to how big or small different birds are,” Hedrick said. “Instead, we saw that, regardless of size, all of these birds flew in the same formation – one that could enable them to gain aerodynamic benefits as they flew in large groups, supporting their long-distance migration”

Although four species evolved separately for 50 million years, with each of these dynamics of accumulation, the combination of clustering and V forms was assumed when clustered. Although birds usually originate from their own species, scientists observe the gods and related collectors.

Although the size, speed, and frequency of momentum vary from the four species, the researchers found that people positioned themselves in the same way: usually spaced apart from their neighbors and between half to half the wings of a bird right in front of them. .

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