Presentation on theme: "Cygnus olor -Mute Swan. Where it came from. Europe Asia Northern Africa"— Presentation transcript:
Cygnus olor -Mute Swan
Where it came from. Europe Asia Northern Africa
Introduced Species Introduced to North America. Australasia southern Africa
Description The name 'mute' derives from its being less vocal than other swan species. Heaviest flying bird. Aggressive
Need to know more. “mute swans have often inspired positive thoughts from Americans who know little about the consequences of having them in the wild. But given the real-world ecological problems this exotic (non-native) species has caused for native waterfowl, it's apparent to most wildlife enthusiasts that America would be better off without it.” =468&q=151812
Hungry swan greatest concerns is that mute swans can and do severely disrupt natural food chains, because their large appetites and year-round presence put tremendous pressure on aquatic vegetation resources.
Where they are
Defensive Can be tame, very defensive when it comes to protecting the nest.
Juvenile Mute Swan
Full Grown Swan
Sex difference Sexes look alike, male slightly larger and with larger knob on bill.
Conservation Status Its aggressive nature can disrupt the nesting of native waterfowl. It is protected in some states, but not others. Some states are attempting to control Mute Swan numbers.
Other names Cygne tuberculé (French) Cisne vulgar (Spanish)