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Pharaoh Eagle Owl - Bubo ascalaphus

Also known as Desert Eagle Owl

Introduction: The Pharaoh or Desert Eagle Owl is a fairly large owl with relatively short and pointed ear-tufts.

[For help with terms used in the description, see parts of an owl. For general characteristics common to most owl species, see owl physiology.]

Description: The facial disc is plain pale tawny, with a rim made up of fine blackish spots. The eyes are yellow to deep orange. The cere is greyish and the bill is black. The ear-tufts are relatively short and pointed, and pale tawny with dark speckles and tawny-brown edges. The crown is pale tawny with many blackish-brown spots.
Upperparts are tawny-rufous, marked dark and light (the shoulders being slightly darker than the back), with individual feathers having dark shaft-streaks with whitish spots on each side, and a broad blackish tip, giving a blotched effect. Scapulars are the same as the back and mantle. Flight and tail feathers are barred light and dark.
The throat is white, and the rest of the underparts are pale tawny-brown to sandy-coloured. The upper breast has dark drop-shaped shaft-streaks and a few cross-bars. The lower underparts are finely marked dark, with individual feathers having a thin shaft-streak and a thin horizontal bar.
Tarsi and toes are feathered pale tawny, the feathering more sparse towards the base of the claws. The tips of the toes are sooty-brown, and the claws are blackish-brown with darker tips.

Size: Length 45-50cm. Wing length 324-430mm. Tail length 160-233mm. Weight about 1900-2300g. The female is larger and heavier than the male.

Habits: The Pharaoh Eagle Owl becomes active after sunset. Roosts by day between rocks, either on the ground or in a steep precipice, cliff crevice or in a cave entrance. They may also roost in a tree if present.

Voice: The song of the male is a short, downward-inflected "Buo". The female has a similar but higher-pitched song. During courtship, a trisyllabic call is uttered with emphasis on the first note, then a slightly higher pitched second and third - "hu-huhoooh". Sometimes only part of this phrase is sung. Such phrases are repeated at intervals of about eight seconds. Dueting occurs during courtship.

Hunting & Food: The Pharaoh Eagle Owl feeds mainly on small vertebrates such as mammals, birds and reptiles, but also larger insects and scorpions. While rodents make up the main diet, hares, bats, desert foxes and hedgehogs are also taken. This owl normally hunts from a perch.

Breeding: Male and female generally pair for life, maintaining the same territory for years. The nest is a shallow scrape among rocks, in a crevice or down a well. On new desert fringes of the sub-Sahara, tree holes or old nest of larger birds are used. A clutch of 2-4 (usually 2) white eggs (55-62 x 45-50mm) is laid directly on the base of the nest site. There is a 2-4 day interval between the laying each egg, and the female incubates them alone, starting with the first egg, while the male supplies the food. Incubation lasts 31-36 days. Chicks are brooded and fed by the female alone for about two weeks, after which the male shares the feeding duties. The young leave the nest at 20-35 days and are fully fledged at about 52 days. They are guided and fed by both parents for 20-26 weeks. They reach maturity in the year following hatching, but do not normally breed before two years of age.

Habitat: Rocky deserts and semi-deserts, mountains with gorges and cliffs, dry, rocky mountain slopes with scattered trees or shrubs, outcrops of oases, occasionally in dry savannas.

Distribution: Occurs in north and northeast Africa from Tunisia south to Gambia, Mali, Sudan and Eritea, and in the Middle East from Syria to western Iraq and south to Oman.

Distribution of Pharaoh Eagle Owl - Bubo ascalaphus
Distribution of the Pharaoh Eagle Owl Bubo ascalaphus

Status: Uncertain.

Original Description: Savigny, Narie-Jules-Cesar LeLorgaede. 1809. Description d'Egypte; ou Recueil des observations et des recherches qui ont ete faites en Egypte pendant l'expedition de l'armee francaise (Descr. Egypte. [1798-1801]) livr. 23 p. 295.

Subspecies: B. a. ascalaphus, B. a. desertorum

References:

Borrow, Nik & Demey, Ron. 2001. "A guide to the birds of western Africa". Princeton University Press
del Hoyo, Elliott & Sargatal. 1999. "Handbook of the Birds of the World: Barn Owls to Hummingbirds". Buteo Books
König, Claus & Weick, Friedhelm. 2008. "Owls: A Guide to the Owls of the World (Second Edition)". Yale University Press
König, Weick and Becking. 1999. "Owls: A Guide to the Owls of the World". Yale University Press
Mikkola, Heimo. 1983. "Owls of Europe". Buteo Books
Mikkola, Heimo. 2012. "Owls of the World: A Photographic Guide". Bloomsbury
Voous, Karel H. 1988. "Owls of the Northern Hemisphere". The MIT Press

Page Information:

Page compiled by . Page last updated 2013-09-23

OwlPages.com Owl Species ID: 090.050.000

 
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