African Darter

African Darter
At the Chobe National Park
Conservation status
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Pelecaniformes
Family: Anhingidae
Genus: Anhinga
Species: A. rufa
Binomial name
Anhinga rufa
(Daudin, 1802)
Synonyms

Anhinga africana

The African Darter (Anhinga rufa ), sometimes called the Snakebird, is a water bird of sub-Saharan Africa.

Contents

Taxonomy

The African Darter is a member of the darter family, Anhingidae, and is closely related to American (Anhinga anhinga), Oriental (Anhinga melanogaster), and Australian (Anhinga novaehollandiae) Darters.

Description

The male is mainly glossy black with white streaking, but females and immature birds are browner. The African Darter differs in appearance from the American Darter most recognisably by its thin white lateral neck stripe against a rufous background colour. The pointed bill should prevent confusion with cormorants.

It is an 80 cm long cormorant-like fish-eating species with a very long neck, like other anhingas.

Distribution

The African Darter is found throughout sub-Saharan Africa wherever large bodies of water occur.

There is an isolated tiny population of the African Darter at the Lower Mesopotamian wetlands in Iraq. The bird used to breed there in breeding colonies with Pygmy Cormorant and Sacred Ibis and other waterfowl.

Behaviour

This species builds a stick nest in a tree and lays 3-6 eggs. It often nests with herons, egrets and cormorants.

It often swims with only the neck above water, hence the common name snakebird. This too is a habit shared with the other anhingas.

Unlike many other waterbirds the feathers of the African Darter do not contain any oil and are therefore not waterproof. Because of this, the bird is less positively buoyant and its diving capabilities are enhanced. After diving for fish, the feathers can become waterlogged. In order to be able to fly and maintain heat insulation it needs to dry its feathers. Thus the African Darter is often seen sitting along the waterside spreading its wings and drying its feathers in the wind and the sun along with cormorants which may share its habitat.

Bibliography

References

  1. ^ BirdLife International (2004). Anhinga rufa. 2006. IUCN Red List of Threatened Species. IUCN 2006. www.iucnredlist.org. Retrieved on 12 May 2006. Database entry includes justification for why this species is of least concern

External links