The European Magpie (Pica pica) is an infamous thief known to steal shiny objects such as gold and jewels. It is also considered one of the smartest animals on the planet and is the only non-mammal able to recognize itself in a mirror.
The Black-billed Magpie makes a very large nest that can take up to 40 days to construct. It's a lot of work, but a study found that it only used about of the daily energy expenditure of the pair. Laying eggs, on the other hand, takes of the female'