- Rich sources of honey
- Environmental suitability
- Few enemies
- How far spy bees can fly
- natural bee division: Before the natural bee division, the swarm will send reconnaissance bees to search for a new nest site, and choose the most suitable nest site when the natural bee division, the search scope is generally within 3 kilometers of the original hive, if the scope can not find a suitable new nest site, the reconnaissance bees will also expand the scope of investigation.
- abandon the nest to fly: the swarm will abandon the nest to fly in the lack of honey or serious enemy damage, but before abandoning the nest to fly scout bees often search for a new nest site in advance, the search scope is generally more than 5 kilometers away from the original hive, if still can not find a suitable new nest site the swarm will fly farther to search for a new nest site.