slothropCrows are intelligent birds and learn quickly – even from each other.In Sweden, they are used to collect cigarette butts and bring them to a machine that automatically rewards them with peanuts.
SabinStargemThat’s a raven ☝️🤓
Crows are intelligent birds and learn quickly – even from each other.In Sweden, they are used to collect cigarette butts and bring them to a machine that automatically rewards them with peanuts.