Crows are incredibly smart birds, and it took no time for Layla to learn there's a special reward at the end of this puzzle. Trump slams energy deal between California and Britain, Politico reports Ex ...

Crows‍‌‍‍‌‍‌‍‍‌ and ravens are the subjects of numerous scientific studies, as their behaviour is very similar to that of humans, especially in terms of memory, problem solving and social awareness.