What is one indication that a honey flow is in progress?

High amounts of foraging activity are a clear indication that a honey flow is in progress. During a honey flow, flowering plants produce abundant nectar, which attracts bees who energetically leave the hive to gather this resource. The increase in foraging activity is observable by the number of bees departing and returning to the hive, typically loaded with nectar.

This behavior signifies that bees are actively collecting resources to make honey, which directly correlates with a honey flow. In busy foraging periods, you can often see bees working on nearby flowers and bringing in significant amounts of nectar, as opposed to times when resources are scarce.

In contrast, increased bee aggression is not typically associated with a honey flow but can result from other stressors like hive disturbances or overcrowding. More brood development might happen concurrent with the honey flow but doesn't explicitly indicate it, as brood rearing can occur at any time when conditions are optimal. A decline in hive population is contrary to what one would expect during a honey flow, as healthy colonies often increase in number due to the abundant resources available.