Thứ Tư, 13 tháng 2, 2013

Blackish cinclodes

Cinclodes antarcticus

Photo by Laurent Demongin (Internet Bird Collection)

Common name:
blackish cinclodes (en); pedreiro-negro (pt); cinclode fuligineux (fr); remolinera negra (es); rußbrauner-uferwipper (de)

Taxonomy:
Order Passeriformes
Family Furnariidae

Range:
This species is found in the southern tip of South America, in Tierra del Fuego and the Falkland islands.

Size:
These birds are 18-23 cm long and weigh 55-70 g.

Habitat:
The blackish cinclodes is mostly found in rocky shorelines, tidal pools, rocky cliffs and offshore islands and also in snady beaches and among grass tussocks. They are present from sea level up to an altitude of 100 m.

Diet:
They feed on small insects and small marine invertebrates found among rotting kelp, but also take regurgitated fish from sea bird colonies, carrion and human garbage.

Breeding:
Blackish cinclodes breed in September-January. The cup-shaped nest is made of grass, lined with feathers and placed under rocks, grass clumps, buildings, in a hole in the ground or in an abandoned petrel burrow. There the female lays 1-3 eggs which are incubated for about 2 weeks. The chicks fledge about 2 weeks after hatching.

Conservation:
IUCN status - LC (Least Concern)
This species has a restricted breeding range, but it is described as fairly common. The population in the Falkland islands is estimated at 20.000 individuals. The population is suspected to be in decline owing to predation by invasive species, especially cats and rats, but the blackish cinclodes seems to thrive on rat-free islands.

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