Changes
* The comparatively small winter cluster sets down near the flight entrance.
* The size of the winter cluster is, on average, smaller than that of many other subspecies’.
* The small and tight winter cluster can withstand high concentrations of CO2Carbondioxide (CO₂).
* The bees in the cluster can stand more mineral components in winter food than other subspecies (adaptation to a long winter and to Calluna honey in winter feed stores)
* Nordic bees usually fly the cleansing flight later or even without being noticed in comparison to other subspecies.
