The black grouse (Tetrao tetrix) is a large bird native to Europe and parts of Asia. It is known for its striking appearance, with males featuring a distinctive black plumage, red combs above their eyes, and a long, fan-shaped tail. These birds inhabit moorlands, forests, and grasslands, often found in hilly or mountainous regions. During the breeding season, male black grouse engage in elaborate displays to attract females, showcasing their vibrant plumage and unique calls. Their diet primarily consists of seeds, berries, and leaves, making them an important part of their ecosystem. Conservation efforts are in place to protect their habitats due to declining populations.