Non-social jays surprise scientists by learning as skillfully as birds living in groups oregonstateuniv SciReports nature
intelligenceThe international collaboration that included Oregon State University's Jonathon Valente was led by the University of California Santa Barbara's Kelsey McCune when she was at the University of Washington. Findings were published in"Further studies with wild animals are clearly necessary to develop a better understanding of when, where and why intelligence evolved," said Valente, a postdoctoral scholar in the OSU College of Forestry.
McCune, Valente and colleagues at Seoul National University and Daegu-Gyeongbuk Institute of Science, also in South Korea, put bird food behind four different types of doors on two identicalapparatuses, each fashioned from a log. Three of the four doors had a simple lock; the other was unlocked but contained a less-desirable type of food—sunflower seeds rather than peanuts.
"Having an unlocked door helped prevent 'naïve' jays from abandoning the foraging area due to a failure to get food, thus increasing their probability of observing group mates interacting with the puzzle," Valente said. But they have very different social systems: Mexican jays assemble in groups of five to 30, while the relatively non-social scrub-jays mainly live with a single mate.
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