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| SCIENTIFIC
CLASSIFICATION |
|
| COMMON
NAME: |
Chiloe
wigeon, Chilean wigeon, southern wigeon |
| KINGDOM: |
Animalia |
| PHYLUM: |
Chordata |
| CLASS: |
Aves |
| ORDER: |
Anseriformes |
| FAMILY: |
Anatidae |
| GENUS
SPECIES: |
Anas
(duck) sibilatrix (whistling) |
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| DESCRIPTION: |
Chiloe
wigeons are small ducks. Males have white
wing patches, white cheeks and forehead and a metallic
green head. The breast is barred white and
black and sides are orange-brown. The back
is dark gray with white streaks. These ducks
have gray bills with black tips. The legs
and feet are dark gray. |
| FEMALE |
Females are slightly duller than males, with a gray
wing patch. |
|
| SIZE: |
42.5-47.5 cm (17-19 in.) long |
|
| WEIGHT: |
Approximately
0.9 kg (2 lbs) |
|
| DIET: |
Includes
water plants, plankton, crustaceans, and tadpoles |
|
| INCUBATION: |
25-26 days |
| CLUTCH
SIZE |
6-11
eggs |
| FLEDGING
DURATION |
6
weeks |
|
| SEXUAL
MATURITY: |
Approximately
2 years |
|
| LIFE
SPAN: |
Averages
20-30 years |
|
| RANGE: |
Southern
South America |
|
| HABITAT: |
Inhabits
fresh-water lakes, marshes and rivers |
|
| POPULATION: |
GLOBAL |
Unknown |
|
| STATUS: |
IUCN |
Not
listed |
| CITES |
Not
listed |
| USFWS |
Not
listed |
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|
| 1. |
When
communicating, both sexes lift their chin and call
in the same way: a whistle. |
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|
| 2. |
Chiloe widgeons have strong pair bonds and - unlike
other widgeons - males often take part in rearing
the young; however, the female alone incubates the
eggs. |
|
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| 3. |
Chiloe widgeons join the very small number of waterfowl
species that have managed to cross the hostile South
Atlantic (Drake Passage) separating the tip of South
America from Antarctica. |
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| These
birds are fairly common throughout their range. |
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|
|
| Austin,
G. Birds of the World. New York. Golden Press,
Inc., 1961. |
|
|
Gotch, A.F. Birds - Their Latin Names Explained.
UK. Blandford Books Ltd., 1981. |
|
|
Johnsgard, P. Ducks, Geese, and Swans of the
World. Lincoln. Univ. Of Neb. Press, 1978.
|
|
| Scott,
P. A Coloured Key of the Wildfowl of the World.
Slimbridge, England. The Wildfowl Trust. 1988. |
|
| Todd,
F.S. Natural History of Waterfowl. San Diego,
Ca. Ibis Publishing Co., 1996. |
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