| Photo Information |
Copyright: Lucas Aguilar (laguilar)
![Silver Note Writer [C: 0 W: 0 N: 54]](http://i1.treknature.com/misc/n-n-s.gif) (181) |
| Genre: Animals |
| Medium: Color |
| Date Taken: 2005-09-17 |
| Categories: Birds |
| Camera: Olympus Camedia C-765 UZ |
| Exposure: f/3.2, 1/800 seconds |
| More Photo Info: [view] |
| Photo Version: Original Version |
| Date Submitted: 2005-10-06 4:05 |
| Viewed: 1781 |
| Points: 2 |
|
| [Note Guidelines] Photographer's Note [Spanish] |
COMMON, MUTE OR TUBERCULADO SWAN
Class: Birds
Order: Anseriformes
Family: Anátidas
Length: 145-160 cm
Wingspan: 208-238 cm
I weigh: 10-23 kg
Habitat: Reservoirs, rivers and continental lagoons, as well as in zones of estuaries
Distribution: Center and Europa's north, east and center of Asia up to this one of China (in domestic condition spread over the rest of the world)
Nourishment: fundamentally vegetarian.
Putting: 4-7 eggs
Incubation: 36 days
Longevity: 19 years it is the major number known in wild state.
Description:
Most known about the swans. It is recognized by his nape, more curled neck, and in certain situations, by the highest posterior end and the longest tail. Closely the red beak is observed by a black protuberance. The female is of minor size that the macho and the prominence is less apparent. It is an awkward bird in land, on the other hand it is the whole spectacle to see her to fly. It advances rapidly with one to beat majestically and with his long neck stretched as the cranes and storks.
Nourishment:
His food is eminently vegetable, feeds of water plants, which they obtain sinking the neck in the water, also of grains, occasionally they consume amphibians and such aquatic invertebrates as mollusks, insects and worms.
Reproduction:
The couples are formed in autumn - winter and in spring they defend a territory to produce. The macho fight often with other congéneres. Macho and female contribute materials for the construction of the nest, but it is the latter who has, constructing at the edge of the water a species of trunk of cone of branches, straws, rushes, algae, with a depression in the top part draped with the most delicate materials. The putting of 5-7 eggs incubated by the female while the macho devotes himself to the alertness. The chickens are fed during the first days. They grow with slowness and a gray plumage replaces slowly the previous down. They fly to 4-5 months and change the completely white 11-12. They reach the sexual maturity at the age of 3-4.
Customs and social life:
Most of the wild populations is migradoras, moving during the winter to moderate regions. The European populations are sedentary and the males defend territories most of the year. The couples remain joined also out of the epoch of baby.
State of conservation:
The being considered as a domestic bird his situation is not threatened. The major enemy of the common swan is the man, since, to effects of avoiding overpopulation, this species can be brought down officially by the Central European hunters. Of the few ones that survive in wild condition many of them settle themselves and reproduce in semicaptivity in private or public reservoirs.
From the zoo of Jerez de la Frontera. |
Only registered TrekNature members may rate photo notes. |
|
![Gold Star Critiquer/Gold Note Writer [C: 100 W: 0 N: 84]](http://i1.treknature.com/misc/g-n-g.gif)
(647)