An especially bright bird waited five and a half minutes for the superior snack.
can pass an avian version of the marshmallow test. The birds that showed the most self-control also scored higher on intelligence tests. According to the study authors, this is the first evidence of a link between self-control and intelligence in birds.
Instead of using marshmallows, Scientists showed ten birds mealworms , bread, and cheese, which the jays typically prefer in that order. The birds could choose between the immediately available bread or cheese or a mealworm. The extra tasty mealworm sat in their line of vision and behind a screen but could only get to after a delay and the screen opening.
The team tested delay times from five seconds up to five and a half minutes before scientists offered a tasty mealworm if the jay resisted eating the bread or cheese. While all the birds in the experiment could wait for the mealworm, some jays could wait longer than others. A bird named JayLo scored the highest by ignoring the cheese and bread for five and a half minutes before scoring a mealworm. Homer and Dolci could only wait 20 seconds max.
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