Editing Winter cluster (section)

==Honey bee brood nest==
{{main|Bee brood}}
In subtropical climates, bees may not form a winter cluster at all.  [[Worker bee]]s forage and [[queen bee|queens]] lay eggs almost year-round.{{citation needed|date=January 2019}}

In the temperate zones, winter temperatures dip below {{convert|12|°C|°F|abbr=on}} for extended periods. All brood rearing stops for some period during the winter. In early spring, brood rearing resumes inside the winter cluster when the queen starts to lay eggs again. Once a brood nest is established, the cluster must maintain a steady temperature between {{convert|34.5|and|36.7|C|F}} inside the cluster. If the temperature in areas of the brood nest dips too low the brood could die – also called [[Diseases of the honey bee#Chilled brood|chilled brood]].{{citation needed|date=January 2019}}