Boreal Owl has a very wide distribution in the pine forest belts of Europe, Asia and north America. In 1928 an isolated population was found in Gansu Province, China, by the Estonian explorer and ornithologist Walter Beick. The owls were rediscovered by Chinese researchers in 1995 at Lianhua Shan National Nature Reserve, in south Gansu. Boreal Owls use nest boxes which have been put up to compensate for the trees lost to logging in the 1950s and 1960s and the population is small but appears stable. This much-studied species always seems to display a “surprised” look.