Podiceps auritus is medium-sized, 31–39 cm long, weighs about 0.5 kg, is firm and has a slightly feathered crown. Breeding feathers: clear orange-yellow eye lines and crown feathers contrast with the black head and extend over the back of the neck, the front neck and two sides are dark chestnut, and the upper body is more black. Winter Feather: Whiter than the black-necked mane," his mouth is not upturned, and his head is slightly larger and flatter. The difference between flight and the black-necked catfish is the wing covert. The whitened tip of the mouth differs from all other smaller spp. The iris is red, the eye circles are white; the mouth is black, the end of the mouth is white; the feet are black, blue or gray.
China breeds in Xinjiang (western Tianshan), in the northeast (Harbin, Lushun), Hebei, Henan, Shandong, and in the lower reaches of the Yangtze River, Fujian and Taiwan.
Horned birds are medium-sized game birds. The body is firm and slightly crowned. Breeding feathers: clear orange-yellow eye lines and crown feathers contrast with the black head and extend over the back of the neck, the front neck and two sides are dark chestnut, and the upper body is more black. Winter Feather: Whiter than the black-necked mane," his mouth is not upturned, and his head is slightly larger and flatter. It has a short black beak, straight and pointed, and the tip is yellowish-white, like a pointed chisel, suitable for pecking shrimp. The wings are short and round, the tail is short, the position of the two legs is long at the tail, the toes have separate, petal-like webs, and the claw tips of the middle toes have castor-like protrusions that can be used as combs to clean the feathers. The difference between flight and the black-necked catfish is the wing covert. The whitened tip of the mouth differs from all other smaller spp.
Breeds between April and August, and spawning usually takes place in June. The male and female have a very interesting courtship dance from acquaintance to mating. On the surface of the water, two met each other, bowed their wings face to face, and then raised their heads and necks, flapped their wings, and quickly moved forward. The nest is very special, it is not in a fixed place, but goes with the flow and floats on the water. After the nest is built, 3-8 eggs are laid,