Found: How birds avoid collision with man-made obstacles

Migratory birds are able to avoid collision with man-made structures, thanks to a well informed leader who guides the flock towards smooth flight, scientists have found.

London: Migratory birds are able to avoid collision with man-made structures, thanks to a well informed leader who guides the flock towards smooth flight, scientists have found.

The study found that the social structure of groups of migratory birds may have a significant effect on their vulnerability to avoid collisions with obstacles, particularly wind turbines.

The researchers from the University of York in the UK created a range of computer simulations to explore if social hierarchies are beneficial to navigation, and how collision risk is affected by environmental conditions and the birds? desire to maintain an efficient direct flight path.

Lead author Dr Jamie Wood said: "We wanted to understand how different social behaviour of different species would affect the ability to avoid obstacles, such as wind turbines and farms, and how much disruption these obstacles cause to the group structure."

Co-author Dr Jon Pitchford added: "We all know that birds naturally migrate in groups. It is less clear whether this is caused by leaders and followers, or by simple democratic rules. Our simulations show that social structure makes an important difference, and that groups with a single well-informed leader are more likely to avoid collisions with wind farms."

The research is published in the Royal Society journal Interface. 

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