Light-crowned Spinetail

Hell vertex tree panties ( Cranioleuca albiceps )

The cut vertex tree panties ( Cranioleuca albiceps ) is a species of bird in the family of Ovenbirds ( Furnariidae ). This species has a large distribution area, which is limited to the countries of Peru and Bolivia. The stock is assessed by the IUCN as endangered not (Least Concern ).

Features

The light peak tree panties reaches a body length of about 14 centimeters. The back, wings and tail are reddish brown to chestnut -colored. The crown is bordered by a black band. The white crown and chin can vary up to a washed out yellow-brown. At the neck the color of the plumage changes to olive-gray. The dark gray area of ​​the lower beam is brightest under the eyes. The sides of the head is decorated with a mixture of different shades of gray and black. The sides of the neck and the bottom are dark olive gray with occasional yellow-brown feathers.

Distribution and habitat

They move in the lower to mid Stratifikationsschichten of open cloud forests at altitudes from 2200 up to 3400 meters. In addition, they are found in bamboo and secondary vegetation.

Behavior

The birds are together alone or in groups of up to 3 animals, often with other flocks of birds, go. They shimmy through the interior of dense undergrowth, climbing woodpecker like tree trunks and jump on the branches around. In search of food they investigate mosses, bromeliads, dead leaves and tree bark. Her singing is an ongoing series louder high notes that repeat 2 to 3 times and sound like a weeweewee - weeweewee.

Subspecies

There are described two subspecies, which differ mainly in their coloring and their area of ​​distribution:

• Cranioleuca albiceps albiceps ( d' Orbigny & Lafresnaye, 1837) - The nominate comes from the southeast in Puno in Peru Valcon to the La Paz Department in Bolivia before.
• Cranioleuca albiceps discolor Room, 1939 The subspecies is distributed in the departments of Cochabamba and Santa Cruz. It differs by the orange - yellow-brown crown. This color also draws on the neck.

Etymology

D' Orbigny and Lafresnaye called the taxon Muscipeta albiceps. Only later the bird was categorized in the genus Cranioleuca. The word Cranioleuca consists of cranium from the Greek kranion for the skull and the Greek leucos for bright, white together. The specific epithet albiceps comes from Latin and is composed of the words albus for white and for ceps -head ( caput of the head) together. The subspecies name discolor is composed of the Latin words dis - apart and color for the color and describes the different colors of the crown and neck of this subspecies.