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Animal Detail ViewՄանրամասն` նրանց մասին

28.02.2012

Silver Pheasant (Lophura nycthemera)


Scientific classification

Kingdom: Animalia

Phylum: Chordata

Subphylum: Vertebrata

Class: Aves

Order: Galliformes

Family: Phasianidae

Genus: Lophura

Species: Lophura nycthemera

Description 

The Silver Pheasant is a relatively large pheasant species which shows a big sexual dimorphism.
The plumage of females is olive brown and indistinct sprinkled, the feathers on the head are black, the belly is brown with white to gray patterns. Alike male birds their feet and the unfeathered skin around their eyes is red, though the colored part is smaller and duller. Males have a  black crest, a black throat and a black-bluish belly. The rest of the plumage is white with several black stripes. In contrast to females their tail is quite long and all in all they are larger. Depending on the subspecies the body-length ranges between 70 – 125 centimeters including a tail of 30 to 75 centimeters.  Female size ranges between 55 and 90 centimeters comprising the length of a 44 – 32 centimeter tail. Moreover the weight of females with 1,3 kilogram is notably smaller than the male maximum weight of 2 kilogram.
All in all the species of Silver Pheasant can be divided into 15 subspecies.

Range and habitat

The species is found in Southeast Asia as in eastern and southern China, Myanmar, Thailand, Vietnam. Some populations were introduced in Hawaii and in some parts of the USA. It inhabits mountain forests and dense scrubland in heights between 1500 and 1800 meters. In Vietnam it can be seen in tropical rainforests above 900 meters and in broadleaf forests and pinewoods above 1200 meters.

Behavior

In contrast to other pheasants, displays before breeding are considered as very simple. The red head wattles of the males blow up and the males draw nearer to the female from the side. Breeding starts relatively early in the end of February and lasts until May.

Diet

The diet consists out of fruits, beers and seeds, but also worms and insects are eaten. Especially young pheasants eat more insects than old birds that have a diet which is more based on plants.

Reproduction

The Silver Pheasants are polygamous and one cock breed often with 2 to 5 hens. Also after breeding season the birds live often in small groups. No nest is built and the eggs are laid in a hallow in the ground or simply on vegetation. Data about clutch diversify but probably ranges between 6 and 8 eggs, but in captivity a single female lays even more than 15. After around 26 days the young Silver Pheasants hatch. Incubation is duty of the mother whereas the male defends the territory. The chicks grow fast and after two years the young birds reach sexual maturity. In wild the birds achieve an age around 10 years, in captivity the lifespan can be longer.

Conservation status

The species listed in the IUCN Red List and evaluated as Least Concern.


 



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