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Bicknell's thrush


Bicknell's thrush
Information sur la photo
Copyright: Carl Adam Wegenschimmel (Carl-Adam) (44)
Genre: Animals
Média: Noir & blanc
Date de prise de vue: 2008
Catégories: Birds
Exposition: f/4, 1/200 secondes
More Photo Info: [view]
Versions: version originale
Date de soumission: 2008-12-27 10:35
Vue: 3010
Points: 2
[Ligne directrice - Note] Note du photographe
Family: Turdidae
Genus: Catharus
Species: C. bicknelli

This bird was captured for research purposes. Very little is known about the biology of this species. This species has a very rare mating behaviour called polygyandry, which means there are multiple males for one female.


Physical Description: Size of a large sparrow, olive-brown back, buffy throat, grey-to-white underparts with chin and flanks spotted with blackish spots. Can be distinguished from the Gray-cheeked Thrush by its size (Bicknell's is considerably smaller) and a longer yellow colour at the base of the lower bill. A chestnut coloring on the upper tail is evident in most Bicknell's Thrushes.

Behaviour: Secretive and elusive, Bicknell's stays hidden amid dense thickets of tangled underbrush, seldom coming out into the open. Occasionally, the male lights on a tree top for a last call as the sun sets and the fog rolls in for the night. A rare treat for the persistent observer is the evening flight song, usually sung at dusk.

Habitat: The breeding range extends from New York's Catskill Mountains north to the lower north shore of the Gulf of St. Lawrence and east to Cape Breton Island in Nova Scotia. The habitat is almost exclusively in montane forests, primarily those dominated by stunted balsam fir and red spruce at elevations ranging from 450 meters (1450 feet) in Cape Breton to more than 915 meters (3000 feet) in Vermont. These high elevation forests consist of nearly impenetrable thickets on steep, rugged slopes. Bicknell's appears to prefer the dense regenerating growth that often characterizes the edges of ski slopes and mountain roads. In Canada, Bicknell's Thrush makes use of second growth industrial forest where elevations and dense growth characteristics are appropriate. From Environment canada http://www.ns.ec.gc.ca/wildlife/bicknells_thrush/e/ultimate_thrush.html


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Critiques [Translate]

Hi Carl brilliant close up of bird. It looks very beautiful. TFS - Regards - Adil.

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