It isn’t easy being blue – the cost of colour in fairy wrens
Submitted by Chickowee on 29 Jun 2017.
Male superb fairy-wrens change colour every year, from dull brown to bright blue. But being blue may be risky if you are a tiny bird that is easily spotted by predators.
Published today, our new study found that male fairy-wrens adjust their risk-taking behaviour after undergoing colour change, becoming more cautious while brightly coloured.
