Eastern cicada killer wasps dig burrows in the ground where they raise their young. These burrows are often found in loose or sandy soil and may appear as small holes with surrounding dirt piles. Homeowners often notice large wasps flying low over the ground or hovering in specific areas of the yard. This behavior can seem aggressive, but it is typically territorial rather than defensive. 

Male cicada killers may fly toward people but cannot sting. Females can sting but usually only do so if handled or directly threatened. Their presence is often seasonal and tied to cicada activity. While they can be alarming due to their size and visibility, they are generally considered a nuisance rather than a safety threat. Repeated activity in the same areas may occur if soil conditions remain favorable for nesting.