and the crows had to count them by pecking. ANDREAS NIEDER: They can see three dots and then produce three pecks and then press an enter key sort of in order to tell us that they're done with the ...

Scientists have discovered that crows can recognize geometric patterns—a skill once believed to be unique to humans. A study led by Andreas Nieder at the University of Tübingen in Germany ...

They divebombed, landing on her head and taking off again, eight times by Joyce’s count. With hundreds of ... Renowned for their intelligence, crows can mimic human speech, use tools and gather ...

Family groups can be as large as 15 birds and may include offspring from five different years. During the winter, crows gather to form communal roosts with hundreds, or sometimes even millions ...

In one study, for example, a computer screen showed crows a certain number of dots, and the crows had to count them by pecking. ANDREAS NIEDER: They can see three dots and then produce three pecks and ...