The Parus major, commonly known as the great tit, is a small passerine bird found across Europe and parts of Asia. It typically measures about 12.5 to 14 cm in length and has a distinctive black cap, yellow underparts, and a greenish back. The great tit is known for its adaptability to various habitats, including woodlands, parks, and gardens. This bird is recognized for its varied and melodious calls, which it uses for communication and territory defense. The great tit primarily feeds on insects, seeds, and nuts, playing a vital role in controlling insect populations. Its ability to thrive in urban environments makes it a familiar sight in many areas.