RMOT 101 water fowl part 1 Geese and swans
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RMOT 101 water fowl part 1 Geese and swans - Marcador
RMOT 101 water fowl part 1 Geese and swans - Detalles
Niveles:
Preguntas:
15 preguntas
| 🇬🇧 | 🇬🇧 |
| 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 |