Bin there, done that: Cockatoos learn to lift trash lids


              In this 2019 photo provided by researcher Barbara Klump, a sulphur-crested cockatoo watches as another opens a trash can in Sydney, Australia. At the beginning of 2018, researchers received reports from a survey of residents that birds in three Sydney suburbs had mastered the novel foraging technique. By the end of 2019, birds were lifting bins in 44 suburbs. (Barbara Klump/Max Planck Institute of Animal Behavior)
            
              In this 2019 photo provided by researcher Barbara Klump, a sulphur-crested cockatoo opens the lid of a trash can in Sydney, Australia. At the beginning of 2018, researchers received reports from a survey of residents that birds in three Sydney suburbs had mastered the novel foraging technique. By the end of 2019, birds were lifting bins in 44 suburbs. (Barbara Klump/Max Planck Institute of Animal Behavior)
            
              In this 2019 photo provided by researcher Barbara Klump, a sulphur-crested cockatoo lifts the lid of a trash can while several others watch in Sydney, Australia. At the beginning of 2018, researchers received reports from a survey of residents that birds in three Sydney suburbs had mastered the novel foraging technique. By the end of 2019, birds were lifting bins in 44 suburbs. (Barbara Klump/Max Planck Institute of Animal Behavior)