father
The father belongs to the family Avignon and the scientific name is Gavia stellata. The wings are 25-29.5 cm long and the tail length is 5-5.3 cm. The forehead and overhead are dark gray. Head side, front side, ear side, cheek, chin, and the power are gray, and the back hair and the back side are greenish black and there are several white vertical lines. The back is dark brown with a green metallic luster. The center of each feather is dark and the edge of the feathers is grayish brown. They swim alone or in groups in the winter sea and dive while searching for food. At the time of flight, the neck is slightly lower than the body line, and straightly extends toward the front. The wings are short, but the speed is fast. They breed in grasslands such as lakes and wetlands near the coast, and nests are formed in the ground or in the concave around the waterfront. The spawning season is between June and July, and it gives birth to two at a time. Eggs hatch in 24-28 days. It mainly eats fish and eats crabs, shellfish, etc.