"Feared and loathed by many, it is believed to bring misfortune to all those who see it at night."
Pokemon is influenced by many things, not the least of which is superstition, and you have to believe that this was a big factor in the creation of Murkrow. As the first Flying/Dark-Type Pokemon, Murkrow is said to be a big omen of misfortune, and even death in some cases. And not surprisingly, it's also been used by many evil groups in the Pokemon games, and one of Ash's (evil) rivals in the anime.
Murkrow's Basic Attacks is Feint Attack and Peck, while its Special Attacks are Foul Play, Dark Pulse, and Drill Peck.