Cebu streak-breasted bulbul | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Order: | Passeriformes |
Infraorder: | Passerides |
Family: | Pycnonotidae |
Genus: | Hypsipetes |
Species: | |
Subspecies: | H. s. monticola |
Trinomial name | |
Hypsipetes siquijorensis monticola |
The Cebu bulbul (Hypsipetes siquijorensis monticola) also known as the Cebu slaty-crowned bulbul or the Cebu streak-breasted bulbul is a subspecies of the streak-breasted bulbul. It is endemic to the Philippines found only on the island of Cebu where its natural habitat is tropical moist lowland forest. Thought extinct until its rediscovery in 1996, it is threatened by habitat loss and hunting. [1] It is likely that this will eventually be split into a separate species and if so will become one of the most endangered species in the world. [2] [3]
EBird describes the Siquijor sub-species bird as "A medium-sized bird of foothill forest and edge as well as more open wooded areas. Fairly large for a bulbul. Dark brown above with a pale belly and a warm brown chest and throat with pale streaking. Note brown cheek and black crown that can be raised into a spiky crest. Similar to Philippine Bulbul, but larger, with a longer bill, a black crown, and a paler throat and chest. Voice consists of rather unpleasant grating chatters and harsh downslurred squeals." [4] [2]
Relative to the Siquijor streak-breasted bulbul, this bird has a paler crown, a more rufous back, a cleaner throat and is slightly smaller. The Cebu bulbul is also not tolerant of wooded areas.
It is typically encountered in singly or in pairs and is much more shy than the common Philippine bulbul. [5]
It is found in tropical lowland moist primary forest.[ citation needed ]
IUCN has assessed the streak-breasted bulbul as a whole as endangered with population estimates being 2,500 to 9,999 mature individuals and continuing to decrease. Most of this estimate is of the nominate subspecies. Relative to the other 2 subspecies, this bird is not tolerant to habitat loss and can only survive in the small remaining patches of forest on Cebu. Apart from habitat It is believed to face significant competition from the Philippine bulbul. [6]
Most sight records nowadays are in Tabunan which is less than 100 hectares, where local rangers have estimated just 10 birds.[ citation needed ] There is a larger forest patch in Alcoy of more than 500 hectares where it has been reported in surveys.but has not been reported on EBird despite numerous observers. [7]
There are currently no targetted species conservation programs for this bird. Conservation actions proposed include:the promotion of forest restoration and regeneration on Cebu in Tabunan and the investigation into the potential for targeted conservation, including captive breeding of this subspecies. [6]
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