London, Nov 12: While it has been known that some species of birds use the alarm calls of other bird species to flee danger, how they develop this ability has been unknown. Now, a team of Australian researchers has found that birds develop this multilingual ability by learning the alarm calls of other birds on the job.
In the study, associate Professor Robert Magrath and colleagues of the School of Botany and Zoology at the Australian National University in Canberra found that fairy-wrens have the ability to learn the alarm calls of other species, giving them the edge when it comes to escaping predators.
For the study, the researchers played recordings of calls of different bird species to fairy-wrens (Malurus cyaneus) and monitored their response.