Crows and ravens are hard to tell apart, but basically, the common raven is bigger than the American and Northwestern crow. So you might think that ravens would win in a fight. But that doesn’t seem to be the case.
Humans aren't the only ones worried about the horrible little buggers known as ticks. It seems like at least one bird species safeguards its nests against ticks with a surprising piece of litter. Cigarette butts.
Birds are capable of extraordinary behavioural feats, from solving complex puzzles to tool making. There may be good reason for that. A new study shows that, pound for pound, birds pack more neurons into their small brains than mammals, including primates.