For centuries, people have taught parrots how to say dirty words and dance. But according to a new study, some parrots have picked up a new skill: using pebbles to grind seashells into calcium-rich ...
In the spring of 2013, Megan Lambert noticed the greater vasa parrots of Lincolnshire Wildlife Park doing something odd. They looked like they were licking the cockle shells that lined the floor of ...
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