Some birds that fly together in big colonies have evolved brightly-coloured feathers under their wings to avoid mid-air collisions, study suggests

Some birds that fly together in big colonies have evolved brightly-coloured feathers under their wings to avoid mid-air collisions, study suggests

Birds with brightly-coloured feathers under their wings may have developed them to avoid mid-air collisions, experts believe. Researchers compared the underwing colours of 1,780 species and found that larger birds, as well as those that flocked together in big colonies, were most likely to have colourful, contrasting feathers. The researchers think this is because larger […]

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