Luzon Bleeding-heart
Gallicolumba luzonica
A medium-sized ground dove of forest floor from the lowlands to lower mountains on Luzon. Bluish-gray on the head and back, with a pale gray forehead, a blackish wing, a pale gray shoulder and wingbars, a white throat, chest, and belly, and an obvious bright red “bleeding heart” in the center of the chest. Unlikely to be mistaken if seen well. The only other dove likely to flush from the ground would be Asian Emerald Dove. Voice is a mournful hooting note, first rising, then falling.
识别特征
On its upper surfaces, the Luzon bleeding-heart is slate grey in color, but because it is iridescent, it can appear to be purple, royal blue, or bottle-green, and the apparent color varies with lighting conditions. On their wings are black bands, while their belly and under wing areas are buff or chestnut.<p>As in most pigeons, there is little sexual dimorphism; males tend to be larger and have a more pronounced red patch, while in the females it is slightly duller. The body shape is typical of the genus, with a round body, a short tail and long legs.
分类信息
- 学名
- Gallicolumba luzonica
- 命名信息
- (Scopoli, 1786)
- 目
- Columbiformes
- 科
- Columbidae
- 属
- Gallicolumba
分布与栖息地
The Luzon bleeding-heart is endemic to the island of Luzon in the Philippines where the locals call it Puñalada. It lives in primary or secondary forests, and can be found at altitudes varying from up to 1400 meters above sea level. They eat seeds, berries and grubs. They are shy and secretive, and very quiet, and rarely leave the ground except when nesting. Unlike the other bleeding-hearts, they usually lay two eggs in each clutch.<p>Three subspecies of the Luzon bleeding-heart are known: Gallicolumba luzonica luzonica, Gallicolumba luzonica griseolateralis, Gallicolumba luzonica rubiventris.<p>Gallicolumba luzonica luzonica is found on the central and southern parts of the island of Luzon, and the neighboring Polillo Islands, while Gallicolumba luzonica griseolateralis is found on the northern part of the island. Gallicolumba luzonica rubiventris meanwhile, is found exclusively on the island of Catanduanes where a single specimen was collected in 1971; this subspecies is very rare and believed to be near extinction or already extinct.
- 迁徙
- Resident species
保护状况
As of 2016, the Luzon bleeding-heart is listed as Near Threatened by the IUCN. This is due to the species being threatened by habitat loss and fragmentation through deforestation for timber extraction and agricultural lands. It is also commonly trapped as a pet for its striking plumage.
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Dark-necked Tailorbird
Orthotomus atrogularis
A brightly-colored tailorbird of lowland tropical forests, forest edges, and gardens. Long-billed with olive upperparts, pale underparts, and a rufous crown. Dark neck patch is only present in males and is unique if seen well but is sometimes concealed and difficult to see. Can be a shy species, staying deep within tangled vegetation; listen for its song, often given in duets, a series of trilled phrases. Also gives a high-pitched nasal “daydayday.” Common Tailorbird is similar but has a less extensive rufous crown and lacks yellow vent and black neck patch.
Bougainville Island-Thrush
Turdus bougainvillei
Poorly-known and seldom-seen thrush endemic to Bougainville, in the northwestern Solomons, where it inhabits montane forests. Dark overall, with orange bill, eyering, legs, and feet. Behavior poorly-known, but like other Island-Thrushes, likely forages at all levels of forest, especially on the ground. Vocalizations are poorly understood.
Green Woodhoopoe
Phoeniculus purpureus
An elongated, metallic-green-black bird with red feet and a long, decurved, red-orange bill. Juveniles have dark bills but are often in the company of adults. It flies heavily, with the long floppy, white-tipped tail dangling behind. Pairs and groups of up to 14 birds are highly social, occupying savanna, woodland, riverine forest, and gardens, where they nest and roost in natural cavities. Clambers in trees, probing bark and crevices for insects and small vertebrates. They communicate using a strong cackling chatter that sounds maniacal. The almost identical Grant’s and Violet woodhoopoes (with which it sometimes hybridizes) differ from Green Woodhoopoe only by having a coppery-purple (not glossy greenish) metallic sheen.
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