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;Clangula hyemalis | ;Clangula hyemalis | ||
| − | [[Image:Long-tailed_Duck.jpg|thumb| | + | [[Image:Long-tailed_Duck.jpg|thumb|550px|right|Photo by hages]] |
| − | + | ||
Location: Varberg, Sweden | Location: Varberg, Sweden | ||
==Identification== | ==Identification== | ||
Formerly known as the Oldsquaw. The common name was changed for motive of political correctness. | Formerly known as the Oldsquaw. The common name was changed for motive of political correctness. | ||
| − | L | + | L 39-47 cm (excl. elongated tail-feathers of 10-15), WS 65-82 cm. |
| + | ==Distribution== | ||
| + | Arctic | ||
| + | ==Taxonomy== | ||
| + | ==Habitat== | ||
| + | Breeds commonly in the Arctic on tundra pools and marshes, also along sea coasts (local in the Baltic) and on still-standing mountain waters. | ||
| + | ==Behaviour== | ||
| + | Gregarious. Winters at sea, often in large, dense flocks, mainly off coasts; then restless and active, taking off and flying agilely, low over the water, in short pursuit-flights, constantly changing direction, landing with splash; dives for molluscs and other animal food. Spring migration through Baltic spectacular; main exodus from Gulf of Finland to tundras in NE on late-May evenings with tail-wind, involving over 100,000 birds on peak days. Complex moult produces at least three different-looking plumages annually; most scapulars and feathers of sides of head and neck are moulted three times a year, breast, upper mantle and rest of head and neck twice, and rest of plumage once a year. | ||
==Bird Song== | ==Bird Song== | ||
<flashmp3>Clangula hyemalis (song).mp3</flashmp3><br /> | <flashmp3>Clangula hyemalis (song).mp3</flashmp3><br /> | ||
Revision as of 11:45, 21 June 2007
- Clangula hyemalis
Location: Varberg, Sweden
Identification
Formerly known as the Oldsquaw. The common name was changed for motive of political correctness. L 39-47 cm (excl. elongated tail-feathers of 10-15), WS 65-82 cm.
Distribution
Arctic
Taxonomy
Habitat
Breeds commonly in the Arctic on tundra pools and marshes, also along sea coasts (local in the Baltic) and on still-standing mountain waters.
Behaviour
Gregarious. Winters at sea, often in large, dense flocks, mainly off coasts; then restless and active, taking off and flying agilely, low over the water, in short pursuit-flights, constantly changing direction, landing with splash; dives for molluscs and other animal food. Spring migration through Baltic spectacular; main exodus from Gulf of Finland to tundras in NE on late-May evenings with tail-wind, involving over 100,000 birds on peak days. Complex moult produces at least three different-looking plumages annually; most scapulars and feathers of sides of head and neck are moulted three times a year, breast, upper mantle and rest of head and neck twice, and rest of plumage once a year.
Bird Song
<flashmp3>Clangula hyemalis (song).mp3</flashmp3>
Listen in an external program
