Bitterns are large, secretive birds that belong to the family Ardeidae, which also includes herons and egrets. They are typically found in wetlands, marshes, and reed beds, where their brown and tan plumage helps them blend into their surroundings. Bitterns are known for their distinctive booming calls, especially during the breeding season. These birds primarily feed on fish, amphibians, and small invertebrates. They have long necks and sharp bills, which they use to catch prey. Bitterns are mostly solitary and are more active at dawn and dusk, making them difficult to spot in the wild.