Field and house crickets are nocturnal and become most active at night, which is when their chirping is most noticeable. Male crickets produce chirping sounds to attract mates, and this noise can become disruptive when they are indoors. 

Crickets are often drawn to structures by lights, warmth, and shelter. They may enter through small cracks, gaps, or open doors and windows, especially during seasonal changes. Once inside, they tend to hide in dark, protected areas such as basements, closets, or behind appliances. 

Homeowners commonly notice chirping sounds at night, crickets jumping when disturbed, or activity near entry points. In larger numbers, crickets may also damage fabrics, paper, or stored items as they feed. While they do not pose health risks, repeated indoor activity often indicates entry points or environmental conditions that are allowing them inside. Addressing these factors is key to long-term control.