QUIRKY WORLD ... Angry Birds show off their displeasure over extinction

FINLAND: Angry Birds are getting angrier, because some of their real-life counterparts in the South Pacific are facing extinction.

Rovio, the creator of the hugely popular Angry Birds games, is teaming up with nature conservationist group BirdLife to spread information and help collect funds to protect birds in the region that are particularly vulnerable to attacks by non-native predators introduced by humans.

The Finnish company is launching the campaign as it releases the Angry Birds Fight game on May 7 in Asia-Pacific, saying it had not realised until now that some of the most critically endangered bird species have populations lower than the number of staff at Rovio, which totals 700.