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Ahmedabad study links starling murmuration shapes to predator threat

Ahmedabad study links starling murmuration shapes to predator threat
Ahmedabad study unlocks new truth about stunning bird formations in the sky · indianexpress.com

Rosy starlings are birds that fly together in huge groups.

When they fly in swirling, changing patterns, it is called a murmuration.

Scientists at Ahmedabad University in India watched these birds for 28 days.

They wanted to learn why the flocks change shape.

They found that when a predator bird, like a black kite, comes close, the flock changes shape.

The birds form a long, pointy shape called 'Small Road' that may help them fly faster to escape.

When no predator is near, the birds mostly make small oval shapes.

The scientists watched 3,023 flocks and recorded 181 times when a predator was nearby.

This study helps us understand how birds work together as a group.

Key facts

Species studied
Rosy starling (Pastor roseus)
Researchers
Venu Divin and Jitesh Jhawar, Ahmedabad University
Publication
Integrative and Comparative Biology (April issue)
Study period
January 2 - February 13, 2025
Flocks recorded
3,023
Predator encounters
181 instances of black kite within 10 metres
Dominant shape with predator
Small Road (71.3%)
Dominant shapes without predator
Small Oval (27.9%) and Mini Flock (27.7%)

Quotes

Jitesh Jhawar

Researcher, School of Arts and Sciences, Ahmedabad University

“There are very few such studies, especially in the wild. If their behaviour is to be predicted in future, these types of studies are needed. Until we understand these dynamics, we will not be able to predict their responses in their natural environment. The collective response is important because often species do not respond individually.”
indianexpress.com
“From the perspective of group living [of birds], this study has broad implications. So far, group living studies have been done in labs; there are very few group living studies directly from the field. This study is one of its kind in that sense. We have shown that group living can be studied in this way [as well].”
indianexpress.com

Sources

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