Name:Tadorna cana
Alias:Tadorna cana,South African Shelduck
Outline:Waterfowl
Family:
length:61-66CM
Weight:1.229-1.527kg
Life:No textual research information is available
IUCN:LC
Tadorna cana (South African Shelduck), no subspecies.
The breeding season takes place during the dry season from May to July. Usually on open plains, permanent lakes, shallow seas, fresh or saltwater shores, plateaus. The right union is fixed, the couple is loyal for a long time. Mating takes place in water or on the ground, and nesting takes place in natural caves or other animal abandoned burrows and tombs on open plains grasslands, as well as in earth and stone caves on mountains and lakes and islands. The nest consists of a small amount of dead grass and a large amount of downy feathers. Clutch size 7-15 eggs. Borne by the female alone, the male guards near the nest, is very territorial, and calls loudly to warn when in danger, and sometimes the male flies to the intruder to make an aggressive posture to intimidate. The female covers her eggs with feathers when she leaves the nest, and then goes out to forage with the male. After the end of foraging, the male flies back to the nest with the female, and then leaves the female to roost near the nest. The incubation period is about 30 days, and the hatched chicks swim with their parents in ponds and streams, and immediately hide in the grass on the shore after seeing people. The chicks are born early, covered with feathers, and can swim and dive. There is also information that after hatching, the chicks are usually carried from the nest area to the water by the parent bird. While swimming in the water, the chicks often climb on the backs of their parents to play, and the chicks are capable of flying after 70 days.
Listed on the International Union for Conservation of Nature (IUCN) 2012 Red List of Threatened Species ver3.1 - Low Risk (LC).
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