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Biology

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A nocturnal species, the booming call of the male pharaoh eagle-owl can often be heard at sunset, as foraging activity commences (4). This species is an efficient and opportunistic predator, exploiting almost any small animal that it can find (2). Hunting normally takes place over a range of about five square kilometres, with the owl usually alighting on a rocky perch, and using its acute hearing to detect prey movements before swooping down on its victim (2) (5). Small mammals are most commonly taken, but snakes, lizards, birds, beetles and scorpions may all feature in this species' diet (6). The pharaoh eagle-owl forms monogamous, lifelong breeding pairs, which mate in late winter, with egg-laying taking place in February and March (2). While nests are usually constructed in shallow scrapes amongst rocks or in crevices (2), incredibly, in Egypt this species has been recorded nesting on at least one of the pyramids (7). A clutch of two eggs is usually laid, which are incubated by the female for around 31 to 36 days, while the male brings food. The young leave the nest after 20 to 35 days, but may not fully fledge for another month, and may remain dependent on the parent birds until half a year old (2).
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Conservation

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While there are currently no conservation measures specifically targeting the pharaoh eagle-owl (1), it is found is several protected areas including Azraq Nature Reserve in the eastern desert of Jordan (9).
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Description

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One of the smaller eagle-owl species, the pharaoh eagle-owl is an attractive bird of prey with striking, large orange-yellow eyes and mottled plumage. The head and upperparts are tawny and densely marked with black and creamy-white streaks and blotches, while the underparts are pale creamy-white, with black streaks on the upper breast and fine reddish-brown vermiculations on the lower breast and belly. The face has the disc-like form typical of most owls, defined by a dark rim, the robust bill is black and hooked, and the head is crowned with small ear tufts. There are two recognised subspecies of pharaoh eagle-owl, Bubo ascalaphus ascalaphus and Bubo ascalaphus desertorum , the latter being smaller and paler with sandier colouration (2).
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Habitat

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The pharaoh eagle-owl is generally found in arid habitats, including open desert plains, rocky outcrops, mountain cliffs and wadis (2) (4).
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Range

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Distributed throughout much of North Africa and the Middle East, subspecies Bubo ascalaphus ascalaphus occupies the northern part of this species range, being found in north-west Africa and northern Egypt, east to western Iraq. By contrast, Bubo ascalaphus desertorum can be found in the Sahara Desert, from Western Sahara, east, to Sudan, as well as in Eritrea, Ethiopia and much of the Arabian Peninsula, as far south as northern Oman (1) (2).
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Status

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Classified as Least Concern (LC) on the IUCN Red List (1) and listed on Appendix II of CITES (3).
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Threats

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The main threat to the pharaoh eagle-owl appears to be persecution, as in certain local areas it believed to be an evil spirit and is killed on site (8). Nevertheless, this species' widespread distribution and apparent abundance in many areas would seem to indicate that it is not currently at risk (1).
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Pharaoh eagle-owl

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The Pharaoh eagle-owl (Bubo ascalaphus) is a species of owl in the family Strigidae. It is native to Algeria, Chad, Egypt, Eritrea, Iran, Iraq, Israel, Jordan, Kuwait, Libya, Mali, Mauritania, Morocco, Niger, Oman, Palestine, Qatar, Saudi Arabia, Senegal, Sudan, Tunisia and the United Arab Emirates.

Description

The Pharaoh eagle-owl has a mottled plumage and large orange-yellow eyes. The head and upperparts are tawny and densely marked with black and creamy-white streaks and blotches, while the underparts are pale creamy-white, with black streaks on the upper breast and fine reddish-brown vermiculations on the lower breast and belly. The face has the disc-like form typical of most owls, defined by a dark rim, the robust bill is black and hooked, and the head is crowned with small ear tufts. With a body length of 46–50 cm (18–20 in), it is one of the smaller eagle-owl species. There are two recognised subspecies of the Pharaoh eagle-owl, the Pharaoh eagle-owl (B. a. ascalaphus) and the desert eagle-owl (B. a. desertorum), the latter being smaller and paler with sandier colouration.

Distribution and habitat

The Pharaoh eagle-owl is native to much of northern Africa and the Arabian peninsula. In Africa its range extends from Mauritania, Morocco, Algeria and Tunisia in the west, through Mali, Niger and Chad to Libya, Sudan and Egypt. It is also known from Saudi Arabia, United Arab Emirates, Qatar, Oman, Israel, Jordan and Iraq. It is a vagrant to Senegal.[1] Its habitat is mostly open arid country with rocky outcrops, plains, wadis and cliffs.[2]

Behaviour and ecology

Egg of the Pharaoh eagle-owl

The Pharaoh eagle-owl is nocturnal and emerges at dusk to hunt over an area of about 5 km2 (1.9 sq mi). It will feed on any small creatures it can find including mammals, birds, snakes, lizards, beetles and scorpions. It perches on an eminence and watches and listens so as to detect moving prey before swooping down on its victim.[2]

This owl is monogamous and forms a lifelong relationship. Breeding takes place in late winter and the nest is a scrape in a crevice or among rocks. Two eggs are laid and incubated by the female for about 31 days. The chicks are fed by both parents and leave the nest at about 20 to 35 days old, but remain reliant on their parents for several more months.[2]

Conservation

The Pharaoh eagle-owl has a very large range and is reported as being abundant in at least part of the range. It faces no particular threats, and is therefore listed as Least Concern on the IUCN Red List.[1]

References

  1. ^ a b c d BirdLife International (2019) [amended version of 2016 assessment]. "Bubo ascalaphus". IUCN Red List of Threatened Species. 2019: e.T22688938A155475822. doi:10.2305/IUCN.UK.2016-3.RLTS.T22688938A155475822.en. Retrieved 7 March 2022.
  2. ^ a b c "Pharaoh eagle-owl (Bubo ascalaphus)". ARKive. Archived from the original on 2013-10-22. Retrieved 2013-12-22.

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Pharaoh eagle-owl: Brief Summary

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The Pharaoh eagle-owl (Bubo ascalaphus) is a species of owl in the family Strigidae. It is native to Algeria, Chad, Egypt, Eritrea, Iran, Iraq, Israel, Jordan, Kuwait, Libya, Mali, Mauritania, Morocco, Niger, Oman, Palestine, Qatar, Saudi Arabia, Senegal, Sudan, Tunisia and the United Arab Emirates.

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