Rust-flanked mockingbird
| Rust-flanked mockingbird | ||||||||||||
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Rust-flanked mockingbird |
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| Mimus patagonicus | ||||||||||||
| ( d'Orbigny & Lafresnaye , 1837) |
The rust-flanked mockingbird ( Mimus patagonicus ) or sometimes the Patagonian mockingbird is a species of bird in the mockingbird family (Mimidae). This species has a large distribution area, which is limited to the countries Argentina , Chile and the British overseas territories Falkland Islands as well as South Georgia and the South Sandwich Islands . The IUCN assesses the population as Least Concern .
features
The rust-flanked mockingbird reaches a body length of about 23 to 25 centimeters, with a fairly short beak. The top is uniformly smoke gray. Two white lines can be seen on the wings, with the large black hand covers showing white speckles and the blackish hand wings in the middle part with white edges. The white speckled wing feathers have yellowish-brown to brown edges. The rump is pale yellow-brown in color. In the blackish tail, the central control feathers are strongly dotted with white and the outer flag is surrounded by a tight white border. The short, wide eye-line is white in front, becomes thinner towards the back and turns into a black-brown. The rest of the head is light gray-brown with a brownish color on the ear covers. The pale gray underside looks monotonous and turns white on the belly. Side and flanks are adorned with a washed-out cinnamon color, partly with a faint dark color on the shafts. The area around the cloaca is white to yellow-brown. The plumage of the juvenile is streaked with black spots on the chest. A pronounced sexual dimorphism does not exist in this species.
distribution and habitat
They move in desert-like areas with scrub at heights of up to 1800 meters. The typical vegetation of their habitat is characterized by larrea from the yoke leaf family , dry forests with chañar ( Geoffroea decorticans ) and prosopis from the legume family . On flood plains you see them also to register . In Chile they can be found in the Región de Aisén and the Province of Valdivia . In Argentina they are present from the north of the province of San Juan via Córdoba and Buenos Aires to the Isla Grande de Tierra del Fuego . In winter they migrate north to Jujuy and Santiago del Estero . In addition, isolated specimens have been observed in the Falkland Islands, as well as South Georgia and the South Sandwich Islands. They are practically never found near settlements.
behavior
Brown-backed Mockingbirds are usually seen in pairs or small family groups. They usually sit vigilantly in a bush or look for insects on the ground by hopping around. However, they do not show any pronounced territorial behavior, such as the very similar Campos mocking thrush ( Mimus saturninus ). Every now and then they put their tail up and wiggle it. As soon as they sense danger, they withdraw into the thorny bushes. When they sit in the canopy, you can see them sing all year round. Her singing is described as very thin.
Research history and etymology
d'Orbigny and Lafresnaye used Orpheus patagonicus in their first description of the taxon . Only later was the bird categorized in the genus Mimus . The word mimus comes from Latin and means to imitate, to imitate . The specific epithet patagonicus is derived from the area of Patagonia , where the bird is typically found relatively frequently.
literature
- Jon Fjeldså , Niels Krabbe : Birds of the High Andes: A Manual to the Birds of the Temperate Zone of the Andes and Patagonia, South America . Apollo Books, Stenstrup 1990, ISBN 87-88757-16-1 .
- Robert S. Ridgely , Guy Tudor: Field Guide to the Songbirds of South America: The Passerines . University of Texas Press, Austin, Texas 2009, ISBN 978-0-292-71979-8 .
- Robert S. Ridgely, Guy Tudor, William Liddle Brown: The Birds of South America Vol. I. The Oscine Passerines: Jays and Swallows, Wrens, Thrushes, and Allies, Vireos and Wood-Warblers, Tanagers, Icterids, and Finches . University of Texas Press, Austin, Texas 1989, ISBN 978-0-292-70756-6 .
Web links
- Mimus patagonicus inthe IUCN 2011 Red List of Threatened Species . Listed by: BirdLife International, 2009. Retrieved January 10, 2012.
- BirdLife International: Species Factsheet - Patagonian Mockingbird ( Mimus patagonicus ) . Retrieved January 10, 2012.
- Videos, photos and sound recordings of the Patagonian Mockingbird (Mimus patagonicus) in the Internet Bird Collection
- Patagonian Mockingbird ( Mimus patagonicus ) at Avibase; Retrieved January 10, 2012.
- Mimus patagonicus in the Integrated Taxonomic Information System (ITIS). Retrieved January 10, 2012.
- xeno-canto: Sound recordings - Patagonian Mockingbird ( Mimus patagonicus )
- Birds of the Pampas Plain Patagonian Mockingbird: Mimus patagonicus pictures
- Aves.no Patagonian Mockingbird, Patagoniaspottefugl Mimus patagonicus image
- Flickr Mimus patagonicus image
- Flickr Patagonian Mockingbird (Mimus patagonicus) picture
- Sistema de Información de Biodiversidad Calandria gris (Patagonian Mockingbird) pictures and information
- Mangoverde Patagonian Mockingbird Mimus patagonicus pictures
- Aves de Valdivia Tenca Patagonica (Mimus patagonicus) pictures