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WetlandPlatform nestHuge · 4.3 kg
ID tip
The coscoroba swan is a medium-large sized waterfowl, but smaller than the true swans, at 90 to 115 cm (35 to 45 in) long with a wingspan of about 155 cm (61 in). Males weigh 3.8 to 5.4 kg (8.4 to 12 lb) and females 3.1 to 4.5 kg (6.8 to 9.9 lb). Their appearance is considered to be slightly strange, being intermediate between that of geese and true swans. They have completely feathered faces—unusual for true swans—and their feet are located directly under their bodies, enabling the coscoroba swan to walk more efficiently than the "waddling" of most waterfowl. Voice: The coscoroba swan makes an onomatopoeic "cos-cor-oo", usually as a threat to intruders. They also make a "monosyllabic hooting note" as a contact call between mates. Immature birds make "loud chirps and trills".
Text from Wikipedia, licensed CC BY-SA 4.0.
When to see the Coscoroba Swan
One bar for each month, and every month is filled: this bird is recorded here in all twelve. The wide bar is October, the month with the most records.
Where to see the Coscoroba Swan
The map shades 8 countries with regular records, and 4 more in a lighter tone where the bird turns up only as a stray. Everything unshaded has no records. Countries are listed below the map.
Recorded as a rare visitor in United States, Germany, Netherlands, United Kingdom.
About the Coscoroba Swan
The coscoroba swan is a species of waterfowl in the subfamily Anserinae of the family Anatidae. It is found in Argentina, Bolivia, Brazil, Chile, Paraguay, Uruguay, and the Falkland Islands.
Text adapted from Wikipedia, licensed CC BY-SA 4.0.
Easily confused with
Musk DuckBiziura lobataAdult males are 60 to 70 cm (24 to 28 in) long and have a distinctive large, leathery lobe underneath the bill; females are 47 to 55 cm (19 to 22 in) long and unadorned.
Upland GooseChloephaga pictaUpland geese males are similar to other sheldgeese, notably the kelp goose (Chloephaga hybrida) due to their predominantly white plumage, while females resemble the ruddy-headed goose (C. rubidiceps) due to their similarly barred breast plumage.
Bar-headed GooseAnser indicusThe bird is pale grey and is easily distinguished from any of the other grey geese of the genus Anser by the black bars on its otherwise white head.
Side by side: Coscoroba Swan vs Upland Goose · Bar-headed Goose vs Coscoroba Swan · Coscoroba Swan vs Musk Duck
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