Eurasian Wigeon (Anas penelope)
Local area
Eurasian ducks (Anas penelope) have a wide distribution, they breed from Iceland across northern Europe and Asia. Although mostly immigrants, some people who live in Britain stay. Winter migrants range from the British Isles to North Africa and India, with a few reaching the United States and Canada. (Carboneras, 1992; Cramp and Simmons, 1977; Johnsgard, 1978)
A cultural region close to the Palearctic Biogeographic region
Place of residence
During breeding, Eurasian ducks live in a wide variety of wetlands, including shallow ponds, lakes and ponds with large floating vegetation, often accompanied by mud. or the bottom. Mallards can also be found in slow-moving rivers and streams. Eurasian ducks prefer grassy or wooded areas. During the winter, Eurasian ducks use mud or salt water to roost. Winter ducks can also be found in clean lakes and meadows. (Carboneras, 1992; Cramp and Simmons, 1977; Johnsgard, 1978)
The habitat is very clean
terrestrial biomestundra
The freshwater and saltwater in the river basins and coastal streams are disgusting
swamp bog
Other characteristics of the coastal habitat
Physical description
Eurasian ducks are medium-sized ducks, ranging from 45 to 58 cm in length, with a wingspan of 75 to 86 cm. They weigh between 415 and 971 g and are sexually dimorphic, with males being more colorful. Eurasian ducks have short beaks, narrow wings, pointed tails, and rounded foreheads. Adult males have a white-brown forehead with a brown head and neck and green patches behind the eyes. The upper breast is pinkish-brown and the lower breast is whitish but grey. They have a black tail and a white upper cover; the wings are white and tipped black. The Eurasian duck has green secondary leaves and dust-brown primaries, with blue legs and a black beak. Males in the daytime look similar to females but have white wing covers. Adult females have a beige, green-tinged head and neck, and their flanks and chests are scaly. Their bones and shoulders are dark, and their feathers are grayish-brown. They also have a gray and blue beak with black and blue legs. Eurasian ducks are often confused with American ducks. Adult male Eurasian ducks can be distinguished from American wigeons by their red heads and gray sideburns. Females are remarkably similar, but European ducks have gray tips on the underside of their wings, while American wigeons have white. (Carboneras, 1992; Cramp and Simmons, 1977; Jacobsen and Ugelvik, 1992; Scott and Rose, 1996)
Other physical properties endothermic bilateral symmetry
Sexual dimorphism means that males are more attractive
Long mass
415 to 971g
14.63 to 34.22 ounces
long length
45 to 58 cm
17.72 to 22.83 inches
Long length
75 to 86 cm
29.53 to 33.86 inches
reproduction
Eurasian ducks are usually monogamous with two matings that begin in late fall and continue into winter. (Cramp and Simmons, 1977)
Gender system
The breeding season of the Eurasian duck is from April to May. They lay seven to eleven beds in small depressions filled with grass on the ground. Selected nesting sites are near banks covered by thickets of branches. The incubation period varies from 22 to 25 days, with an average of 24 days. Eurasian ducks are free at or before the color stage, which they reach in 40 to 45 days. Sexual maturity is reached at one to two years. (Carboneras, 1992; Cramp and Simmons, 1977; Johnsgard, 1978)
Main features of iteroparous reproduction gonochoric/gonochoristic/dioecious reproduction (different sexes) oviparous sex
Duration of birth
Ducklings breed once a year. mating season
These birds breed from April to May.
Very early
7 to 11
Stop wasting time
22 to 25 days
Average slot time
24 days
Long years are running out
40 to 45 days
Age and sex or reproductive age (female)
1 to 2 years
Age and sex or reproductive age (male)
1 to 2 years
Once two matings are completed, male Eurasian ducks defend their mate until mating. In the early stages, men often leave their spouses and become crazy. Once incubation begins, until it grows, the female provides all the care. (Johnsgard, 1978)
Prenatal Parental Investments Prenatally Protecting Women Prenatally / Prenatally Protecting Women / Prenatally Protecting Women / Prenatally Protecting Women.
Comments
Post a Comment