Philippine frogmouth

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Philippine frogmouth
Philippine Frogmouth.png
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Clade: Strisores
Order: Podargiformes
Family: Podargidae
Genus: Batrachostomus
Species:
B. septimus
Binomial name
Batrachostomus septimus
Tweeddale, 1877

The Philippine frogmouth (Batrachostomus septimus) is a nocturnal bird that can be found throughout the Philippine archipelago. It is common in lowland forests and maturing second growth. There is little information about the bird. It feeds on grasshoppers, cicadas, crickets and beetles.

Contents

Description

Like all frogmouths, the Philippine frogmouth has large eyes for better night vision, a large flat bill for capturing insects, and cryptic plumage which allows them to be camouflaged while perched during the day. They are found in the Philippines, and can be confused with the Philippine Nightjar, which despite its similar shape has very different plumage.

Illustration of Batrachostomus septimus (Philippine Frogmouth) by Joseph Smit Batrachostomus septimus 01.jpg
Illustration of Batrachostomus septimus (Philippine Frogmouth) by Joseph Smit

The Philippine frogmouth is a medium frogmouth, being 24–26 cm long, with two color morphs (and intermediate phases); one is a chestnut rufous with deep rufous ground color, the other a lighter brown with buff and black barring. [2] Both morphs have three distinct light buff or white bands; one on their hindneck, a second on their lower throat, and a third around the lower breast. They have a yellow-orange iris and brown feet and bill. Although males and females have a similar appearance, females are typically darker and plainer. [3]

Distribution and habitat

The Philippine frogmouth is a sedentary bird, endemic to the Philippines, and is widely distributed within the archipelago, though noticeably absent from Palawan. Though rare, there have been sightings in India and Australia. They are thought to be found in lowland and maturing (but not mature) second growth forests, but their habitat is not known in detail as they are only active at night and do not sing songs or have loud calls. [4] [3]

Behavior and ecology

Reproduction

The nest is built from a horizontal branch that is placed two to five meters above ground. It is made from the parent's own downy feathers which is held in place using spider silk, moss and lichens. The female lays one egg per season. The male incubates the egg during the day and the female at night.

Diet and feeding

Philippine frogmouths are adaptable, and eat large insects, such as grasshoppers, cicadas, crickets, and beetles. They feed by waiting on low branches and striking when they notice an insect moving below. [4] Like other species in the genus Batrachostomus, the Philippine frogmouth has elongated bristles around the base of their bill, believed to protect their eyes from prey. [5]

Vocalizations

Male calls are a series of low, deep woah, wash, Guam, or g-aw noises, or a short even trill. [3] Female calls are louder, a short mewl that descends in pitch. Both sexes have a harsh growling call they repeat several times per minute, and a harsh staccato-like scream that is believed to be an alarm call. [6]

Conservation

The Philippine frogmouth is currently listed as species of least concern by the IUCN as of 2012, though it is believed its population is slowly declining due to habitat destruction. The reason for this listing is the large range, the rate of decline not reaching the threshold to qualify as a vulnerable species, and while the population size has not been officially quantified, it is believed to exceed the threshold to be considered vulnerable based on the population size criterion. [1]

Related Research Articles

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<span class="mw-page-title-main">Indian nightjar</span> Species of bird

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<span class="mw-page-title-main">Australian owlet-nightjar</span> Species of bird

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<span class="mw-page-title-main">Tawny frogmouth</span> Species of bird

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<span class="mw-page-title-main">Plain nightjar</span> Species of bird

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<span class="mw-page-title-main">Rufous-cheeked nightjar</span> Species of bird

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<span class="mw-page-title-main">Silky-tailed nightjar</span> Species of bird

The silky-tailed nightjar is a species of nightjar birds in the family Caprimulgidae. It is found in Brazil, Argentina, Bolivia, Paraguay, and Peru. Its natural habitat is subtropical or tropical moist lowland forests.

<span class="mw-page-title-main">Spotted nightjar</span> Species of bird

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<span class="mw-page-title-main">Blyth's frogmouth</span> Species of bird

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<span class="mw-page-title-main">Large frogmouth</span> Species of bird

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<span class="mw-page-title-main">Hodgson's frogmouth</span> Species of bird

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<span class="mw-page-title-main">Javan frogmouth</span> Species of bird

The Javan frogmouth, sometimes known as Horsfield's frogmouth, is a species of bird in the family Podargidae. It is sometimes considered conspecific with the Blyth's and Palawan frogmouths. Found in Southeast Asia, Indonesia and the Philippines, it lives in subtropical or tropical moist lowland forest.

<span class="mw-page-title-main">Sumatran frogmouth</span> Species of bird

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<span class="mw-page-title-main">Winchell's kingfisher</span> Species of bird

Winchell's kingfisher or the rufous-lored kingfisher, is a species of bird in the family Alcedinidae, the kingfishers. It is endemic to the Philippines, its natural habitat being lowland forests. It is threatened by deforestation, and the International Union for Conservation of Nature (IUCN) has assessed it as a vulnerable species.

<i>Antrostomus</i> Genus of birds

Antrostomus is a genus of nightjars formerly included in the genus Caprimulgus. They are medium-sized nocturnal birds with long pointed wings, short legs and short bills.

References

  1. 1 2 BirdLife International (2016). "Batrachostomus septimus". IUCN Red List of Threatened Species . 2016: e.T22689597A93238772. doi: 10.2305/IUCN.UK.2016-3.RLTS.T22689597A93238772.en . Retrieved 13 November 2021.
  2. "Philippine Frogmouth (Batrachostomus septimus) – Planet of Birds". www.planetofbirds.com. Archived from the original on 2018-03-14. Retrieved 2018-03-13.
  3. 1 2 3 Nigel, Cleere (2010-08-30). Nightjars : a guide to nightjars and related birds. Nurney, David. London. ISBN   978-1408135471. OCLC   727647954.{{cite book}}: CS1 maint: location missing publisher (link)
  4. 1 2 Heaney, Lawrence (11 May 2004). "Philippine Deforestation". The Field Museum. Archived from the original on 15 March 2006. Retrieved 11 March 2018.
  5. Firefly encyclopedia of birds . Perrins, Christopher M. Buffalo, N.Y.: Firefly Books. 2003. ISBN   1552977773. OCLC   51922852.{{cite book}}: CS1 maint: others (link)
  6. A guide to the birds of the Philippines. Kennedy, Robert S. Oxford: Oxford University Press. 2000. ISBN   0198546688. OCLC   43936896.{{cite book}}: CS1 maint: others (link)