The 
birds aren’t the only angry things at Rovio headquarters today. Executives likely aren’t too thrilled, either.
Profits at the studio behind the Angry Birds juggernaut fell by nearly 50 percent in 2013, sliding from $76.8 million to $37.3 million. That drop came despite more money actually coming into the company’s coffers. Revenues were up by just under $5 million last year.
Chris Morris: Journalist 