Wasp taking in water

Wasp taking in water

Observation - Wasp taking in water. Description: This photograph is one wasp in a constant stream coming in to a garden pond apparently filling up with water and flying off. Sometimes so heavy that they were almost unable to take off. Are they taking water back to the nest?

This photograph is one wasp in a constant stream coming in to a garden pond apparently filling up with water and flying off. Sometimes so heavy that they were almost unable to take off.
Are they taking water back to the nest?