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level: Level 1

Questions and Answers List

level questions: Level 1

QuestionAnswer
What is the order and family name of all water fowl?Anseriformes and anatidae
Water fowl features• Sieve bill • 3 webbed toes • Strong sexual dimorphism – Except geese and swans • Tegmen on primary flight feather
What are the 4 reasons for variation in duck plumage?Age, sex, seasonal, and geographical
Swan characteristics• Very large • All white plumage • No sexual dimorphism
Mute swan characteristics• Holds neck in an S- shape • Bill = pinky-orange with black knob at base • Doesn’t migrate – Nests in BC + aggressive to native swans
Which of the BC swans is non-native?Mute swan
Trumpeter swan characteristics• Winters in BC - Some nest in northern BC – Once populations low, now common • Neck bends at base • Bill = black + Upper margin forms a straight slope • Largest NA waterfowl
Tundra swan characteristics• Nests in Arctic – Few winter in BC • Holds neck straight • Bill = Black with yellow patch at base • Absent in ~20% of birds – Upper margin curved
Geese characteristics• Smaller than swans, larger than ducks • Longer necks than ducks • Feet set farther forward than ducks – Spend lots of time on land • No sexual dimorphism • Bill is thick at base
Canada goose characteristics• Widespread • Geese were introduced – Mainly non-migratory • Fall to spring – migratory geese also here – Only goose to breed in BC • Black head with white chin strap • Urban pests – Control measures include egg addling
Cackling goose characteristics• Nests on tundra • Smaller version of Canada Goose – Cackling: 55-75 cm – Canada: 76-110 cm • Shorter bill
Brant characteristics• Nest in Arctic – Stops here on migration + common in March around Parksville • About 20,000 stopover • Dark goose • Short black neck with white collar • Previously overhunted
Greater white-fronted goose• Some winter on south BC coast ,others migrate through • Brown body • Barring on belly • Pink-orange bill - white forehead and face • White under tail • Orange legs
Snow goose• Breeds in Arctic. Some winter in BC, others migrate through • Two morphs – Light phase - white – Dark phase (blue) - rare in BC • Pink bill • Black wingtips in flight • Grinning patch – Black “lips”
Ross' goose characteristics• Rare in BC – Some fly through on migration • Smaller version of Snow Goose – Ross’: 57-64 cm – Snow: 69-83 cm • Lacks grinning patch • Shorter neck and bill than Snow Goose