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The blue-billed duck (Oxyura australis) is a small Australian stiff-tailed duck, with both the male and female growing to a length of 40 cm (16 in). [ 2 ] [ 3 ] The male has a slate-blue bill which changes to bright-blue during the breeding season, hence the duck's common name.
The lake duck grows to 36–46 centimetres (14–18 in). Females weigh 510–700 grams (18–25 oz) and males 600–850 grams (21–30 oz). Males can be distinguished from Andean duck (Oxyura ferruginea), a similar species, by being smaller and having a flatter head. [2] Female ducks have an anti-corkscrew vagina made for difficult penetration.
This is a list of the bird species recorded in Vietnam.The avifauna of Vietnam include a total of 963 species, of which 18 are endemic, and 5 have been introduced.. This list's taxonomic treatment (designation and sequence of orders, families and species) and nomenclature (common and scientific names) follow the conventions of The Clements Checklist of Birds of the World, 2022 edition.
Map from the Đại Nam nhất thống chí. The Đại Nam nhất thống chí (chữ Hán: 大南一統志, 1882) is the official geographical record of Vietnam's Nguyễn dynasty written in chữ Hán compiled in the late nineteenth century. [1] It also contains historical records of military campaigns. [2] [3]
The adult greater scaup is 39–56 cm (15–22 in) long with a 71–84 cm (28–33 in) wingspan and a weight of 726–1,360 g (1.601–2.998 lb). It has a light blue bill with a small black nail on the tip, yellow eyes, and is 20% heavier and 10% longer than the closely related lesser scaup. [16]
The blue duck or whio (Hymenolaimus malacorhynchos) is a member of the duck, goose and swan family Anatidae endemic to New Zealand. It is the only member of the genus Hymenolaimus . Its exact taxonomic status is still unresolved, but it appears to be most closely related to the tribe Anatini , the dabbling ducks.
Map of ancient Asia shows location of the Âu Việt state of Nam Cương and other Viet’s kingdoms. According to folklore, prior to Chinese domination of northern and north-central Vietnam, the region was ruled by a series of kingdoms called Văn Lang with a hierarchical government, headed by Lạc Kings ( Hùng Kings ), who were served by ...
Uchu Sentai Kyuranger is a 2017 Japanese television series, and is the 41st entry of the long-running Super Sentai series produced by TV Asahi and Toei Company.Taking place in the late 21st century, the series follows a team of alien warriors chosen by the constellations to fight Jark Matter, an evil organization that has taken over the galaxy.