Cebu boobook

Last updated

Cebu boobook
Cebu Boobook.jpg
CITES Appendix II (CITES) [2]
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Strigiformes
Family: Strigidae
Genus: Ninox
Species complex: Philippine hawk-owl species complex
Species:
N. rumseyi
Binomial name
Ninox rumseyi
Rasmussen, Allen, D, Collar, Hutchinson, Jakosalem, Kennedy, RS, Lambert & Paguntalan, 2012
Philippine Hawk Owl distribution.PNG
Pale Blue: Cebu Hawk Owl N. rumseyi

The Cebu boobook or Cebu hawk-owl (Ninox rumseyi) is a species of owl in the family Strigidae. It is endemic to the Philippines. It was formerly considered a subspecies of the Philippine hawk-owl, but was reclassified in 2012, as voice and other data suggested placement in a distinct species. [3]

Contents

Description and taxonomy

EBird describes the bird as "A medium-sized owl of wooded areas on the island of Cebu. Head and upperparts dark brown and indistinctly barred. Underparts orange-brown. Shows some white speckling in the wing, a pale bar behind the shoulder, bright yellow eyes, and white eyebrows forming an arching V-shape. Note the large white throat patch. Unmistakable. No other owls occur in its range. Song is a distinctive “wip! Doo-wip! Doh” with the middle notes falling then rising, and the final note falling. Also gives single 'wip' notes and rasps." [4]

The Cebu boobook is an earless species. Males and females are similar in appearance. It nests in natural cavities of older, larger trees.

Along with the Camiguin hawk-owl and Romblon boobook, it is the largest in the Philippine hawk-owl species complex at 25cm tall versus the much smaller Luzon boobook, Mindanao boobook, Mindoro boobook and Sulu boobook, which range in size from 15 to 20cm tall. [5]

Ecology and behaviour

This species feeds on a diet of insects, small mammals, reptiles, amphibians and birds. Among Philippine hawk-owls, this species appears to feed more on birds with species such as Elegant tit, Magnificent sunbird, Red-keeled flowerpecker and flycatchers as part of the birds it has recorded to feed on. Nests have been found in May. Each breeding pair is believed to hold territories of 10 hectares. Nrdy esd trvotfrf in natural cavities in the trunks of tall trees. Nest contained 2 eggs. [6]

Habitat and conservation status

Its natural habitats are subtropical or tropical moist lowland primary forest and secondary forests up to an altitude of 700 metres above sea level. It is also seen in clearings and plantations as long as there is nearby forest [5]

The IUCN Red List classifies this bird as vulnerable with population estimates of 250 to 999 mature individuals with the belief that its population is on the lower estimate of that range. This species' main threat is habitat loss with wholesale clearance of forest habitats as a result of legal and illegal logging, mining and conversion into farmlands through slash-and-burn and urbanization. Cebu underwent severe deforestation in the 1890s and now just 0.03% or 15 km2 forest cover remains. The forests of Cebu continue to undergo hunting pressure and deforestation — further reducing what little there is remaining.

This has led to many other species sharing its range to also be endangered. It also shares a habitat with the Cebu flowerpecker which is one of the most endangered birds in the world and other endangered species such as the black shama and Cebu streak-breasted bulbul. This has led to many extinctions of species such as Cebu warty pig and possibly the Cebu amethyst brown dove and subspecies extinctions of Philippine oriole, blackish cuckooshrike, bar-bellied cuckooshrike, Philippine hanging parrot and more.

The Cebu boobook occurs in the Alcoy, Argao, Dalaguete, Tabunan and Boljoon protected forests, but like all places in the Philippines protection is lax.

There is no species-specific conservation program at present.

Related Research Articles

<i>Ninox</i> Genus of birds

Ninox is a genus of true owls comprising 36 species found in Asia and Australasia. Many species are known as hawk-owls or boobooks, but the northern hawk-owl is not a member of this genus.

The Manus boobook, Manus hawk owl, Admiralty hawk owl or Admiralty Islands hawk owl is a small owl. It has an unmarked brown facial disk, rufous crown and back, barred white flight feathers and tail, and whitish underparts with rufous streaking. Its call is repeated growling, like that of a frog.

<span class="mw-page-title-main">Cebu flowerpecker</span> Species of bird

The Cebu flowerpecker is a small passerine bird. It is endemic to Cebu Island in the Philippines. Feared to have become extinct early in the 20th century, it was rediscovered in 1992 in a small patch of limestone forest in the Central Cebu Protected Landscape. It has since been found at three other sites, namely the Nug-as forest of Alcoy, Mount Lantoy of Argao and the forests of Dalaguete. This four-colored bird normally grows to 11 or 12 centimeters. The male is characterized by a large, triangular, scarlet to vermilion coat stain. In the female, the top is brown. The Cebu flowerpecker consumes small fruits and mistletoe plants and is generally active in the mornings to avoid competition with more aggressive birds. Despite attempts to protect its habitat it remains critically endangered due to illegal logging.

<span class="mw-page-title-main">Philippine hawk-owl</span> Species of bird

The Philippine hawk-owl is a species complex of owls in the genus Ninox. They are all endemic to the Philippines.

<span class="mw-page-title-main">Philippine leafbird</span> Species of bird

The Philippine leafbird is a species of bird in the family Chloropseidae. It is endemic to the Philippines. It is found in the islands of Mindanao, Leyte, Samar and Cebu. Its natural habitat is tropical moist lowland forest. It is threatened by habitat loss.

<span class="mw-page-title-main">Black shama</span> Species of bird

The Black shama is a species of bird in the family Muscicapidae. It is endemic to the island of Cebu, Philippines where it is known locally as "Siloy".

<span class="mw-page-title-main">Blackish cuckooshrike</span> Species of bird

The blackish cuckooshrike or the blackish cicadabird or Luzon graybird, is a species of bird in the family Campephagidae. It is endemic to the Philippines on the islands of Luzon, Catanduanes, Marinduque and Cebu where it is presumed extinct. Some taxonomists place this species in the genus Analisoma.Its natural habitat is tropical moist lowland forest where it is believed to be declining due to habitat loss.

<span class="mw-page-title-main">Pygmy flowerpecker</span> Species of bird

The pygmy flowerpecker is a species of bird in the family Dicaeidae. It is endemic to the Philippines.

<span class="mw-page-title-main">Scarlet-collared flowerpecker</span> Species of bird

The scarlet-collared flowerpecker is a species of bird in the family Dicaeidae, about 10cm long and is endemic to the Philippines where it found only in the tropical moist lowland forests in Mindoro, usually occurring below 1000m in the canopy and edge of the forest and in open country with scattered trees. Along with the critically endangered Cebu flowerpecker, it is one of the two threatened flowerpeckers in the Philippines and is declining primarily due to habitat loss.

<span class="mw-page-title-main">Sulphur-billed nuthatch</span> Species of bird

The sulphur-billed nuthatch is a species of bird in the family Sittidae. It is endemic to the Philippines. Its natural habitats are tropical moist lowland forest and tropical moist montane forest. It is commonly found in mixed flocks along with Blue-headed fantails, sunbirds, flowerpeckers and other small forest birds.

<span class="mw-page-title-main">Golden-crowned babbler</span> Species of bird

The golden-crowned babbler is a species of bird in the family Zosteropidae. It is endemic to the Philippines found only in the moist tropical forest in Northern Luzon. It is threatened by habitat loss.

<span class="mw-page-title-main">Chocolate boobook</span> Species of owl

The chocolate boobook is a bird species in the true owl family, Strigidae. It was formerly considered to be a subspecies of the brown boobook. It was formerly thought to be endemic to the Philippines until it was heard and recorded Karakelang in Indonesia in 1997 but there have been no subsequent records outside the Philippines since.

<span class="mw-page-title-main">Camiguin boobook</span> Species of owl

The Camiguin boobook or Camiguin hawk-owl is an owl species resident to the Camiguin island in the Philippines. It is the only owl in the country with greenish-yellow or grayish eyes. It was previously known as a subspecies of the Philippine hawk-owl, but was reclassified in 2012, as voice and other evidence suggested it a distinct species. Its native name is kugkug

<span class="mw-page-title-main">Luzon boobook</span> Species of owl

The Luzon boobook or Luzon hawk owl, also Philippine hawk owl or Philippine boobook, is a species of owl in the family Strigidae. It is endemic to the Philippines where it lives in forests. It is a brown and white mottled bird and males and females look much alike.

<span class="mw-page-title-main">Mindanao boobook</span> Species of owl

The Mindanao boobook or Mindanao hawk-owl is a species of owl in the family Strigidae that is endemic to the Philippines on the island of Mindanao. It was previously known as a subspecies of the Philippine hawk-owl, but was reclassified in 2012, as voice and other evidence suggested it a distinct species. It is found in tropical moist lowland forest. It is threatened by habitat loss.

<span class="mw-page-title-main">Mindoro boobook</span> Species of owl

The Mindoro boobook or Mindoro hawk-owl is a species of owl in the family Strigidae that is endemic to the Philippines.

<span class="mw-page-title-main">Romblon boobook</span> Species of owl

The Romblon boobook or Romblon hawk-owl, is a species of owl in the family Strigidae that is endemic to the Philippines. It is only found on the islands of Tablas, Sibuyan and Romblon. It was previously known as a subspecies of the Philippine hawk-owl, but was reclassified in 2012, as voice and other evidence suggested it was a distinct species. Its natural habitat is tropical moist lowland forest. It is threatened by habitat loss.

<span class="mw-page-title-main">Sulu boobook</span> Species of owl

The Sulu boobook or Sulu hawk-owl is a species of owl in the family Strigidae. It is endemic to the Sulu Archipelago in the Philippines. It was previously known as a subspecies of the Philippine hawk-owl, but was reclassified in 2012, as voice and other evidence suggested it was a distinct species. It is found in tropical moist lowland forest. It is threatened by habitat loss.

References

  1. BirdLife International (2022). "Ninox rumseyi". The IUCN Red List of Threatened Species . 2022. IUCN: e.T22725505A110287090. Retrieved 26 July 2022.
  2. "Appendices | CITES". cites.org. Retrieved 14 January 2022.
  3. New Owl Species: Camiguin Hawk-Owl, Cebu Hawk-Owl Discovered In Philippines
  4. "Cebu Hawk-owl". Ebird. Archived from the original on 1 April 2020.
  5. 1 2 Allen, Desmond (2020). Birds of the Philippines. Barcelona: Lynx and Birdlife International Guides. pp. 172–177.
  6. Fjeldså, Jon; de Juana, Eduardo (2020). "Cebu Boobook (Ninox rumseyi), version 1.0". Birds of the World. doi:10.2173/bow.cebboo1.01. ISSN   2771-3105.