Circaetus

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Circaetus
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Short-toed snake eagle (Circaetus gallicus)
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Accipitriformes
Family: Accipitridae
Subfamily: Circaetinae
Genus: Circaetus
Vieillot, 1816
Type species
Falco gallicus
Gmelin, 1788

Circaetus, the snake eagles, is a genus of medium-sized eagles in the bird of prey family Accipitridae. They are mainly resident African species, but the migratory short-toed snake eagle breeds from the Mediterranean basin into Russia, the Middle East and India, and winters in sub-Saharan Africa and east to Indonesia.

Snake eagles are found in open habitats like cultivated plains arid savanna, but require trees in which to build a stick nest. The single egg is incubated mainly or entirely by the female.

Circaetus eagles have a rounded head and broad wings. They prey on reptiles, mainly snakes, but also take lizards and occasionally small mammals.

Taxonomy and species

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The genus Circaetus was introduced in 1816 by the French ornithologist Louis Pierre Vieillot to accommodate a single species, the short-toed snake eagle, which is therefore considered the type species.[1][2] The genus name is from the Ancient Greek kirkos, a type of hawk, and aetos, "eagle".[3]

The genus contains seven species.[4]

Image Common name Scientific name Distribution
File:Western banded snake eagle (Circaetus cinerascens).jpg Western banded snake eagle Circaetus cinerascens Senegal and Gambia to west Ethiopia and south to Namibia and Zimbabwe
File:Circaetus fasciolatus, Chiboma, Sofala, Birding Weto, a.jpg Southern banded snake eagle Circaetus fasciolatus Kenya to northeast South Africa
File:DryotriorchisSpectabilisSmit.jpg Congo serpent eagle Circaetus spectabilis West and central Africa
File:Flickr - Rainbirder - Beaudouin's Snake Eagle (Circaetus beaudouini).jpg Beaudouin's snake eagle Circaetus beaudouini Senegal to South Sudan, northwest Kenya and Uganda
File:Black-chested snake-eagle (Circaetus pectoralis).jpg Black-chested snake eagle Circaetus pectoralis east Sudan and Ethiopia to South Africa
File:Short-toed Snake Eagle perched.jpg Short-toed snake eagle Circaetus gallicus southwest Europe to central Asia, northwest China and India; Lesser Sunda Islands
File:Brown snake eagle, Kruger National Park (38184851511).jpg Brown snake eagle Circaetus cinereus Senegal and Gambia to Ethiopia and south to South Africa

Fossil record

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Circaetus rhodopensis (late Miocene of Bulgaria)[5]

Circaetus haemusensis (early Pleistocene of Bulgaria)[6]

References

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  5. ^ Boev, Z. 2012. Circaetus rhodopensis sp. n. (Aves, Accipitriformes) from the Late Miocene of Hadzhidimovo (SW Bulgaria). - Acta zoologica bulgarica, 64 (1): 5-12.
  6. ^ Boev, Z. 2015. An Early Pleistocene Snake-eagle (Circaetus haemusensis sp. n. - Aves, Accipitriformes) from Varshets (NW Bulgaria). – Acta zoologica bulgarica. 67 (1), 2015: 127-138.

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