African grey parrots are smart enough to help a bird in need | New Scientist

African grey parrots are not only really smart, they are helpful too. They are the first bird species to pass a test that requires them both to understand when another animal needs help and to actually give assistance....
https://www.newscientist.com/article/2229571-african-grey-parrots-are-smart-enough-to-help-a-bird-in-need/