Which observation could indicate that a colony is thriving?

A thriving colony exhibits strong, focused foraging patterns. This behavior indicates that the bees are actively seeking food resources, which is essential for the colony's growth and health. A robust foraging effort suggests that the colony has an adequate population of foragers and that they are efficient in locating and utilizing available pollen and nectar sources. This activity usually correlates with a well-established hive, abundant resources, and successful queen laying. In contrast, aggressive behavior or frequent fighting may indicate stress or issues within the colony, while increased clustering near the entrance can occur for various reasons, not necessarily signifying a thriving status.