Yellowish bulbul

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Yellowish bulbul
Yellowish Bulbul - Philippines H8O1414 (16864505460).jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Infraorder: Passerides
Family: Pycnonotidae
Genus: Hypsipetes
Species:
H. everetti
Binomial name
Hypsipetes everetti
(Tweeddale, 1877)
Hypsipetes everetti distribution map.png
Synonyms
  • Criniger EverettiTweeddale, 1877 [2]
  • Ixos everetti(Tweeddale, 1877)

The yellowish bulbul (Hypsipetes everetti) is a species of songbird in the bulbul family, Pycnonotidae. It is endemic to the Philippines found only on East Visayas, Mindanao and the Sulu Archipelago. The birds of the Sulu archipelago are sometimes considered a separate species called the Sulu bulbul. This species is declining due to habitat loss.

Contents

Description and taxonomy

EBird describes it as "A medium-sized bird of lowland and foothill forest and edge. Fairly large for a bulbul. Two different-looking races occur. The widespread one is olive-brown above with a yellow belly and an orange-brown chest, throat, and cheek. Sulu birds have warm brown upperparts. Yellowish Bulbul is similar to Philippine Bulbul, but has a yellow rather than white belly. Song consists of a descending series of medium-pitched notes, jumping back to a higher note at the end. Also gives harsh grating calls and nasal screeches."

The Camiguin bulbul (H. catarmanensis) of Camiguin Sur was formerly considered a subspecies, but more recent studies have found it to be a distinct species [3] The yellowish bulbul is differntiated by its olive green cap, lighter plummage, smaller size and through its call.

Subspecies

Two subspecies are currently recognized:

Ecology and behavior

The diet of the consists of insects and fruit but not much is known about the specifics.

Barely anything is known about this species breeding behaviour. Birds in breeding condition with enlarged gonads collected in Jun. Otherwise, mating, nest and fledgling stages of this bird are all undescribed. [4]

Habitat and conservation status

It is found in tropical moist lowland forest up to 1,000 meters above sea level.

The International Union for Conservation of Nature recognizes the Yellowish bulbul as two separate species. It lists the Yellowish bulbul as Least-concern species as it remains common throughout most of its range across Mindanao and East Visayas. Occurs in a few protected areas like Samar Island Natural Park, Mount Apo and Mount Kitanglad but actual protection and enforcement from illegal logging and hunting are lax. [5]

The Sulu bulbul is assessed as Near-threatened species due it is relatively small range. The islands on the Sulu Archipelago have mostly been deforested. [6]

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References

  1. BirdLife International (2016). "Hypsipetes everetti". IUCN Red List of Threatened Species . 2016: e.T103823433A94364608. doi: 10.2305/IUCN.UK.2016-3.RLTS.T103823433A94364608.en . Retrieved 17 November 2021.
  2. Internet Bird Collection. Yellowish Bulbul (Ixos everetti). Accessed 19 November 2011.
  3. "Species Updates – IOC World Bird List" . Retrieved 2021-05-29.
  4. Rasmussen, Pamela C.; del Hoyo, Josep; Fishpool, Lincoln; Collar, Nigel; Tobias, Joseph A.; Kirwan, Guy M. (2023). "Camiguin Bulbul (Hypsipetes catarmanensis), version 1.0". Birds of the World. doi:10.2173/bow.yelbul4.01species_shared.bow.project_name. ISSN   2771-3105.
  5. IUCN (2016-10-01). Rhipidura superciliaris: BirdLife International: The IUCN Red List of Threatened Species 2016: e.T103708673A94089569 (Report). International Union for Conservation of Nature. doi:10.2305/iucn.uk.2016-3.rlts.t103708673a94089569.en.
  6. IUCN (2023-01-24). Hypsipetes haynaldi: BirdLife International: The IUCN Red List of Threatened Species 2023: e.T103823597A226742571 (Report). International Union for Conservation of Nature. doi:10.2305/iucn.uk.2023-1.rlts.t103823597a226742571.en.