donderdag 28 mei 2009

bird brains




A Vending Machine for Crows
An Experiment in Corvid Learning

Josh Klein designed the machine so that when the crows searched for the missing peanuts, they pushed the coins out of a dish into a slot, causing more peanuts to be released into the dish. The Binghamton crows quickly learned that dropping nickels and dimes into the slot produced peanuts, and the most resourceful members of the flock began looking for more coins. Within a month, Klein had a flock of crows scouring the ground for loose change.
source:
nytimes

video
Crow Vending Machine (03:45)


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