Tboli sunbird | |
---|---|
Male | |
Female | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Order: | Passeriformes |
Family: | Nectariniidae |
Genus: | Aethopyga |
Species: | |
Subspecies: | A. b. tibolii |
Trinomial name | |
Aethopyga boltoni tibolii |
The Tboli sunbird (Aethopyga boltoni tiboli) is a subspecies of bird in the sunbird family Nectariniidae. It is endemic to the Philippines found only in the mountains of south Mindanao. Its natural habitat is tropical moist montane forest starting from 800 meters above sea level. This subspecies is recognized as a distinct species by The Clements Checklist of Birds of the World.
Ebird describes it as a "A small, localized bird of montane forest in southern Mindanao. Has a long, curved bill, a gray head, yellow underparts and rump, an olive back and wings, and a white-tipped tail. Male has a narrow pale yellow throat stripe from the bill to the chest bordered with dark gray, a greenish-blue tail, and an orange patch in front of the shoulder. Female has a pale gray throat and a faintly streaked chest. Similar to Gray-hooded Sunbird, but Tboli has a yellow rather than white belly. Voice similar to Apo Sunbird’s, including a rapid pulsing series of “chip!” notes and a high-pitched upslurred “chuuuuuit!”” [1]
This species was first collected in 1964 by Dioscoro S. Rabor but it was only in 1997 that it was recognized as a distinct subspecies. It is extremely similar to the Apo sunbird but is duller in plumage and has paler pectoral tufts.
This subspecies is classified as its own species by The Clements Checklist of Birds of the World. [2]
This species is presumed to feed primarily on nectar but will also supplement its diet with insects especially when it is nesting.This species is found singly, in pairs and forms mixed species flocks with other forest birds. [3] [4]
Not much information about this species' ecology has been published aside the paper released when it was described as a subspecies in 1997. The Apo sunbird is better studied and it is highly likely to have the same breeding habits. Apo sunbirds have been recorded breeding in January to July. Its nest was described as built of moss, spider eggs and insect cases. [5]
The Apo sunbird is a bird local to the island of Mindanao in the Philippines. It can be found in mountainous areas in the southern parts of the island on Mount Matutum and Mount Busa in the provinces of South Cotabato and Sarangani [6] Its natural habitat is in montane rainforest above 800 meters above sea leve which is significantly lower than the boltoni and malindangensis Apo sunbirds which are found above 1,500 meters above sea level. [7]
The Tboli sunbird has not yet been recognized as its own species by the International Union for Conservation of Nature. The Apo sunbird is listed as least concern but was formerly near threatened. Despite its limited range, it is said to be locally common.
As it occurs in rugged and inaccessible mountains, this has allowed a large portion of its habitat to remain intact. However, there it is still affected by habitat loss through deforestation, mining, land conversion and slash-and-burn - just not to the same extent as lowland forest. It is found in the protected areas of Lake Holon and Mount Matutum but actual protection from deforestation is still lax.
The Mindanao hornbill, also known as the Mindanao tarictic hornbill, is a medium-small species of hornbill found in the canopy of rainforests on Mindanao, Dinagat, Siargao and Basilan in the southern Philippines. All five Philippine tarictics were once considered a single species. Its population declining due to habitat destruction, hunting and the illegal wildlife trade.
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