Birds who play smarter than those who don't

Corellas involved in play fighting.(Supplied: Bobbi Marchini)

Cockatoos communicate with their comb as well as body posture, say bird experts.(Supplied: Gisela Kaplan)

Professor Kaplan said "When I compared the play behaviour species with non-play behaviour species, I was absolutely blown away by the results," she said. "Those that play socially had the largest brains and those that do not play at all, the smallest brains…… https://www.abc.net.au/news/2020-12-26/birds-that-play-are-smarter-finds-gisela-kaplan-research/12990902