Crows use eye contact to transmit information

British researchers say for the first time in the world, crows capable of using eyes to communicate with each other are similar to primates.

Photo: kenh14

In a paper published in Biology Letter, researchers from Cambridge and Essex University said that the Jackdaw crows use their eyes to warn the enemy, preventing the opponent from entering its nest. Scientist Gabrielle Davidson told NewScientist magazine that the Jackdaw crow has very different eyes than its relatives. Accordingly their eyes have irises and a striking white halo on the black fur background.

Scientists have installed recording equipment with each collection of 4 different images in one hundred crows of this suburb of Cambridge to monitor their gaze.

Gabriell Davidson said Jackdaw is a habitat crow that is very different from others because their nests are natural tree niches, since their beaks cannot dig into the trunk. Therefore, they must compete because the amount of natural tree niches is not much. After analyzing the captured videos, Davidson said when he was in the nest, each individual Jackdaw emitted eye beams to warn other children who intend to invade their residence.