The Northern Hawk Owl was found in the coldwaters of Lake Tuusula , just north of Helsinki .
这位冒险者在赫尔辛基北部的苏拉湖冰冷的湖水中发现了这只北鹰鸮。
Northern Hawk Owl , or Surnia ulula , differs from a majority of owls as it is not nocturnal , i.e. it is active during the day .
北鹰鸮(或者叫猛鴞)与大部分的猫头鹰爱在夜间活动不同,它们在白天比较活跃。