The black swan

The black swan is native to Australia and Tasmanian 
It is a specie of swan, who is named like this because of his colour entierly black . 
In1864, it was introduced in New Zealand . During the nineteenth and twentieth centuries,
it was also introduced as an ornamental bird water bodies  in different countries,
including Europe: Germany, Austria, Belgium .
In New Zealand, black swan hunting is permitted in season only, depending on regional boundaries. 
About 5,000 swans are hunted each year .
The world's population is estimated at between 300,000 and 500,000 individuals .
 He has been 110 by 140 cm and weighed 6 kg .
 Food : The black swan is vegetarian, his food consists of algae and weeds

  
which the bird obtains by plunging its long neck into water up to 1 m deep. 

Environment: the black swan lives in larger salt, brackish or fresh waterways and permanent wetlands,
requiring 40 m or more of clear water to take off.

He lives in very thick colonies Outside the breeding season, Black Swans travel quite large distances. 
Birds fly at night and rest during the day with other swans. 
. 

                                                

             Two black swan in courtship ritual