Brauenzaunkönig

Bestimmung

The bicolored wren is the largest South American wren and second in size only to the giant wren overall in the family. It is 21 to 22 cm (8.3 to 8.7 in) long and weighs 37 to 46.5 g (1.31 to 1.64 oz). The sexes are similar. The nominate adults have dark chocolate crowns and napes and their upperparts a paler chocolate. An off-white supercilium separates a dark brown stripe through the eye from the crown and the rest of the face is also white. Their tail is dark brown; all of the tail feathers except the middle pair have a white band near the end. The throat and the entire underparts are white. C. g. albicilius is rustier than the nominate; so is bicolor but its rump is lighter. C. g. minor is smaller and its nape and upper back are blackish brown. C. g. pallidus is paler and more gray than the nominate and has a darker crown. The juveniles are grayer than the adults; their caps are mottled gray-brown and their underparts are grayish white.

Taxonomie

The bicolored wren has six subspecies:<p>It has sometimes been treated as conspecific with the giant wren (Campylorhynchus chiapensis) and might form a superspecies with it. Subspecies C. g. zimmeri has been considered to be an intergrade between albicius and the nominate griseus.

Wissenschaftlicher Name

Campylorhynchus griseus

Autorität

(Swainson, 1838)

Ordnung

Passeriformes

Familie

Zaunkönige (Troglodytidae)

Gattung

Campylorhynchus

Verbreitung und Lebensraum

The subspecies of bicolored wren are distributed thus:<p>The bicolored wren inhabits areas with scattered trees and bushes and is completely absent from forests and wide open areas. C. g. bicolor occurs in arid thorn scrub and the other subspecies in significantly more humid areas. In elevation it ranges up to 2,100 m (6,900 ft) in Colombia and 1,600 m (5,200 ft) in Venezuela.

Zugverhalten

Standvogel

Verhalten

Zugverhalten: Standvogel.

Schutzstatus

Bestandstrend: stabil.

Bestandstrend

stabil