★ 10.0
★ 7.0
★ 4.8
★ 7.2
★ 0.0
★ 6.0
★ 8.0
★ 4.5
★ 9.0
★ 7.5
Whoever came up with the term 'bird brain' never met these feathered thinkers, who use their claws and beaks to solve puzzles, make tools and more.
