Which of the following visual signs may indicate past termite activity?

The presence of discarded wings, fecal pellets, or damaged wood serves as strong indicators of past termite activity. When termites swarm, they shed their wings, which means finding these discarded wings in or around a property could suggest that there was a termite colony that previously established itself in the vicinity. Additionally, fecal pellets, which are the droppings of termites, can also point to their presence, as they often expel these as they consume wood. Damaged wood, particularly wood that shows signs of tunneling or hollowing, can directly illustrate that termites have been active in that area, as they consume wood to build their nests and feed.

In contrast, freshly painted walls do not provide any relevant information regarding termite activity and can hide underlying issues. Cracks in the foundation may indicate structural problems but do not specifically signal termite presence. Increased ant activity around the property may suggest various issues and even some overlap with termite activity but is not a direct indicator of past termite activity like the other signs associated with termites specifically.