Spotted Imperial-Pigeon
Ducula carola
A fairly large pigeon of lowland and montane forest canopy with a pale gray head, breast, and back, a rufous belly, and spotted wings. The chest and belly colors blend in the female, but are separated by a black breast band in the male, the width of which varies with race. Occurs together with other imperial-pigeon species, but differs in having a rufous belly. Song is an accelerating series of deep hoots.
分类信息
- 学名
- Ducula carola
- 命名信息
- (Bonaparte, 1854)
- 目
- Columbiformes
- 科
- Columbidae
- 属
- Ducula
分布与栖息地
The spotted imperial pigeon is endemic to the Philippines. It has been recorded on Luzon, Mindoro, Sibuyan, Negros, Siquijor and Mindanao, but may be locally extinct on some islands. Its habitats are forests and forest edges, including areas with some logging. It is usually found below elevations of 2,000 m (6,600 ft) above sea level. Seasonally visits limestone shorelines for reasons that have yet to be fully studied.
- 迁徙
- Resident species
行为
This pigeon is often found in flocks of more than 30 individuals. It associates with the green imperial pigeon. The spotted imperial pigeon's voices include po po po po po, and a hu hu hu hu hu call. Captive birds give low oomph notes. It eats fruits from Eugenia and Ficus trees. It probably breeds from February to July. One nest has been recorded in a hollow in a cliff. Flocks react to the availability of food by moving great distances daily and seasonally. Seasonally visits limestone shorelines for reasons that have yet to be fully studied. Richard Ruiz, who has been monitoring the annual return of the pigeons to Pasuquin shoreline since 2011, says the seasonal movement may be a way for the birds to "socialize". Other theories suggest the pigeons fly down to the coast to ingest calcium and other nutrients that are needed to strengthen their egg shells. Others say the birds travel to the coast to drink or bathe in salt water.
保护状况
The population size is estimated at 2500–9999 mature birds, or 3500–15000 total individuals. This species may have become locally extinct on Sibuyan, Mindoro and Siquijor. In the 1950s, it was common on Negros but has not been recorded there recently. It has also declined on Luzon and Mindanao. It is threatened by habitat loss and hunting. Spotted Imperial Pigeons have been recorded on the pet trade. Spotted imperial pigeons occur in the protected Northern Sierra Madre Natural Park and Mt. Kitanglad Natural Park. The International Union for Conservation of Nature has assessed the species's conservation status as vulnerable.
- 种群趋势
- declining
照片
分布
其他鸟类
Scarlet Macaw
Ara macao
Spectacular, huge, and long-tailed parrot, wiped out from most areas by capture for the pet trade; attempts at reintroduction are taking place in some protected areas. Found very locally in lowland rainforest and adjacent semiopen areas with big trees; usually in pairs. Unmistakable, bright scarlet red overall with big yellow wing patches and mostly blue wings and rump. Calls are deep, throaty roars that carry long distances.
Gray-backed Hawk
Pseudastur occidentalis
An endangered raptor found only in western Ecuador and immediately adjacent parts of Peru. It has white underparts, dark gray back and wings, and gray streaks on the head. Its tail is white with a thick black band near the tip that is especially evident in flight. Restricted to areas where extensive forest cover remains. Prefers dry and semi-humid areas; not normally present in the wetter forests of northwestern Ecuador, but may occasionally wander into them.
Striped Kingfisher
Halcyon chelicuti
A small and dainty woodland-dwelling kingfisher with powder-blue tail and flight feathers, creamy collar, dark eye-stripe, and streaky brown crown. Singles and pairs are inconspicuous in the mid-canopy of parkland-like savanna and woodland, preferring more arid thornveld than other dryland kingfishers. It draws attention to itself with a loud, ringing “teeep-tiiii-rrrrrrr” and rollicking “trrreerrr-treeerr-treeer” calls.
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