Rollandia rolland

A swimming bird, the white grebe is 31 cm long. The body feathers are mainly black brown, black head, black neck, and a white cluster behind the corner of the eye, hence the name. Blackbeak, straight, laterally flattened, pointed; The nostrils are open and located near the base of the mouth; The wings are short, with 12 primary feathers, the first remains, and the fifth secondary feathers missing. The tail has only a few short soft feathers, or almost no feathers. Place your feet near your hips. Flat tarsus, suitable for diving; Each of the four toes has a wide webbed flap; The claws are blunt and broad, the inner edge of the middle toe is serrated, and the back toe is short, higher or absent than the other toes. The body feathers are short and dense, with moisture resistance; Feathers with accessory feathers, caudal lipid gland coverts; Both sexes are similar. The skull was split palatine type and whole nose type. Lacking basal pterygoid process; Lack of cecum in digestive system; You

Living in freshwater lakes, swamps in the plant cluster, almost life in the water, often cluster living.

Rollandia rolland, Podiceps rolland, or White-tufted Grebe, is a species of swimming bird.

Great white grebe is not good for flight. They use their feet instead of wings and rarely walk on the ground. Can dive for food, generally diving only 1 ~ 4m deep. It lives in ponds and slow-moving streams and nests in moving water. Adult birds often dive to the bottom to feed on small fish and aquatic invertebrates.

When breeding, the white grebe builds floating nests in the grass near the water, made of reeds, weeds, and some clay. Each egg is produced 2 to 7, white, mostly stained by dirt. The male and female incubate the eggs in turn. The eggs hatch for about 25 days. The young are early sex, the body is densely feathered, can move freely, in the chicks hatched 2-3 weeks, the parent birds often put the chicks on the back, frightened diving they are under the wings.

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