Taxonomy
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Family: Anatidae
Order: Anseriformes
Genus: Cygnus
Species: C. Atratus
Evolution
-mute, whooper, trumpeter, tundra, black, and black-necked
-First seen in 1697
-Closest relatives are geese and ducks
-Three ancestors are Vegais iaai, Presbyornis, and Procygnus
Description
-black feathered birds, white flight feathers, bright red bill
-between 43-56 inches
-8.6-20 lbs
-up to 40 years
-males are larger than females and have a longer and straighter bill
Description of Habitat:
-Periods of heavy rain
-Algae, leaves of reedmace, and stoneworts
-Kiwi, short finned eel, bleating tree frog
-46-88 degrees Fahrenheit
-Marshes, swamps, floodplains
Distribution:
-Oceania, North America
-Not invasive
Diet:
-Algae, leaves of reedmace, stoneworts
-Eat 20-25% of their bodyweight per day
-Plung their neck in water to get food
-Occasionally eat insects
Social Structure:
-Usually move in flocks
-Predator and prey for species, maintain aquatic health
-Males or females can lead, they share roles
-Groups of 6-8, mate for life in pairs
-males greet each other with a snorting sound, females solicit mates with a glock call
Reproduction:
-Mate every year
-One mate for life
-Mate from March to May
-Synchronised head dipping, preening and the rubbing of back and flanks
-They lay 5-7 eggs
Development:
-hatching, flying, migration
-Sexual maturity at 1-3 years of age
-Males are slightly larger than females
Causes of death:
-may be preyed on by cats, dogs foxes
-Bird flu
Competition:
-Sexual competition, males competiting for females
-competition for food with mute swans
IUNC rating:
-Least concern
-Between 100,000-1,000,000
-No significant decline has been identified
Impacts of Humans:
-Habitat destruction
-Climate change
-Raising Awareness