The Siberian nutcracker, a bird species belonging to the crow family Corvidae, resides primarily in the Russian region of Siberia. Occasionally, however, this charming and easily recognizable character wanders in from the east, reaching us here in Norway.
There are two subspecies of the Northern nutcracker: the nominate form (Nucifraga caryocatactes caryocatactes), whose population in Fennoscandia has increased over the last 30 years, and the subspecies known as the Siberian nutcracker (Nucifraga caryocatactes macrorhynchos), which occasionally visits from the east. These visits occur at irregular intervals, with major influxes recorded in 1968 and 1995. Following the 1995 influx, a small population remained in Central Norway..
The Northern nutcracker is a non-migratory bird; only exceptional circumstances — such as a scarcity of food in its usual habitat — occasionally compel young birds to wander. Both subspecies are dietary specialists: while the nominate form specializes in hazelnuts, the Siberian nutcracker has become an expert at extracting seeds from the cones of the Swiss stone pine (Pinus cembra). This tree is one of 68 conifer species in our conifer arboretum, and it is likely the reason why our spotted visitor has been staying in the botanical garden for the past few weeks.
The Siberian nutcracker in its mottled plumage, with a brownish-black crown and wings, searching for Swiss stone pinecones. Photos: Helena Wehus/NBH
We are delighted to have such a distinguished visitor — and even more pleased that it has drawn curious birdwatchers to the Botanical Garden! Please remember that only wild animals are permitted to help themselves to pinecones and other plant material. As for us humans, we must leave everything in the Botanical Garden exactly where it is — no matter how lovely it might look in a Christmas wreath..
We welcome you to the botanical garden for exciting plant and animal experiences!