The Goldcrest is Sweden's smallest bird, only 9 cm long. It is also a fairly common bird - but difficult to see! This is because it often moves high up in the spruce tops - and builds its nest there, suspended under one of the upper branches. The sound is of a very high frequency and therefore easy to miss, some older people do not even hear it ... This bird was captured in a picture in Styggkärret nature reserve where there is plenty of old forest.