Field crickets and house crickets differ in several ways, including their appearance and habitats. Field crickets are larger, usually black or dark brown, and are typically found outdoors in gardens, fields, or under rocks. They are known for their loud, persistent chirping, especially at night. In contrast, house crickets are lighter in color, often tan or yellowish-brown, and are more likely to be found indoors, particularly in warm, moist environments like basements or near heat sources. While both can chirp, house crickets are generally less noisy.