What a birdbrain. A dimwit “farm boy” tourist was arrested for swiping a flamingo from a popular Las Vegas hotel and taking  selfies with the poor bird while “choking” and maiming it in his room, according to police. Mitchell Fairbarn, 33, of Ontario, Canada got tossed in a cage himself after allegedly snatching Peachy from an enclosure at the Flamingo hotel on the city’s iconic, casino-dotted strip Tuesday, cops told the Las Vegas Review Journal. The bird-napping flew into high gear at around