As regular CFZ-watchers will know, for some time Corinna has been doing a column for Animals & Men and a regular segment on On The Track... particularly about out-of-place birds and rare vagrants. There seem to be more and more bird stories from all over the world hitting the news these days so, to make room for them all - and to give them all equal and worthy coverage - she has set up this new blog to cover all things feathery and Fortean.

Thursday, 20 November 2014

Ravens sabotage others' bonding activities

Presented by
Michelle Douglass

Ravens are renowned for their intelligence and sophisticated social behaviour. But a new study has revealed a previously unknown strategy among the social-climbing corvids.

Ravens attempt to prevent others forming alliances that might lead to them becoming future competitors.

In raven society, individuals may gain power by forming coalitions. “The hierarchical structure among the ravens is highly dependent on their bonding status,” explains research team member Dr Jorg Massen from the University of Vienna’s Department of Cognitive Biology.

Within this hierarchy, established 'bonded' birds are further up the social ladder than those in the process of making bonds, known as 'loosely bonded' birds. At the bottom of the social hierarchy are birds with no specific bonds, these are known as 'nonbonded' individuals.

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