Corvids – birds such as ravens, crows, and magpies – and parrots are considered to be special among birds, as they have unusually large and densely packed brains. They show many cognitive capacities that are linked to an advanced understanding of their surroundings. This has earned them the name “feathered apes”. A recent study has found that it’s not only crows and ravens who help one another – grey parrots do as well.
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