Scaled Pigeon
Patagioenas speciosa
Handsome large pigeon of humid forest and edge in tropical lowlands. Usually seen flying overhead, less often perched in canopy of tall trees. The male is ruddy brown overall and the female is gray-brown overall. Both have a bright-red, creamy tipped bill and extensive dark scalloping and scaling on the neck, chest, and underparts. In flight, note the whitish belly that contrasts with the blackish underside to the tail.
识别特征
The scaled pigeon is 36 cm (14 in) long and weighs normally about 290 g (10 oz). Adult males have mainly purple brown plumage, with a paler scaly appearance to the neck and underparts. The lower underparts are whitish edged with purple. The eyering, legs and bill are red, the latter having a white tip. The female is dull dark brown rather than purplish, and is slightly smaller than the male.<p>Scaled pigeons feed mainly on forest fruits and seeds. Birds have also been seen to feed on fresh green leaves and sometimes crops. The call is a series of deep cooing cro ku-ks that differs markedly from that of its relatives, such as the white-crowned pigeon. This is a solitary bird which does not form flocks.<p>The scaled pigeon has been recorded as successfully nesting on a fern (Pteridium aquilinum at ground level, and in the canopy of the tree fern Cyathea cyatheoides). The pearl kite visits nests of this species as a natural predator.
分类信息
The scaled pigeon was formally described in 1789 by the German naturalist Johann Friedrich Gmelin in his revised and expanded edition of Carl Linnaeus's Systema Naturae. He placed it with all the other doves and pigeons in the genus Columba and coined the binomial name Columba speciosa. Gmelin based his description on "Le Ramiret" and the "Pigeon ramier de Cayenne" that had been described and illustrated in 1871 by the French polymath Georges-Louis Leclerc, Comte de Buffon. The scaled pigeon was moved to the resurrected genus Patagioenas based on a molecular phylogenetic study published in 2001. The genus had been introduced by the German naturalist Ludwig Reichenbach in 1853. The genus name combines the Ancient Greek patageō meaning "to clatter" and oinas meaning "pigeon". The specific epithet speciosa is from Latin speciosus meaning "beautiful". The species in monotypic: no subspecies are recognised.
- 学名
- Patagioenas speciosa
- 命名信息
- (Gmelin, JF, 1789)
- 目
- Columbiformes
- 科
- Columbidae
- 属
- Patagioenas
分布与栖息地
- 迁徙
- Resident species
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Christmas Island Boobook
Ninox natalis
Small, distinctive boobook with extensive chestnut-brown barring. Favors surviving primary rainforest, but can sometimes be found in secondary growth; can be found on roadsides through suitable habitat when hunting. The only resident owl on the island; the migratory Northern Boobook is a winter visitor to the island, and is significantly larger and much darker overall, with an all-brown head and brown-striped white underparts. Present species gives an odd, distorted-sounding “qwr-qwerk.” Begging birds give a shrill trill. Unfortunately, like many other Christmas Island species, has suffered declines due to the introduced yellow crazy ant, which has caused the owl to disappear from parts of its range.
Scaled Chachalaca
Ortalis squamata
Medium-sized chachalaca with brown plumage and a heavily scaled throat and upper breast. Found at forest edges and in second growth, where it forages in small groups on the ground and trees. May visit bird feeders. Sings an incredibly loud “re-a-tok”, repeated continually.
Silvery-fronted Tapaculo
Scytalopus argentifrons
Tapaculos are small, plump, short-tailed, mostly gray birds that are as sneaky as mice. Silvery-fronted is the only tapaculo in its range, and the male has a distinctive whitish eyebrow. Also look for browner flanks with dark bars. Females don’t have the white eyebrow but are still distinctive in range because of the overall dark color and extremely furtive habits. Rarely seen well; stays on or near the ground in the forest understory. Listen for the song: a series of chips starting off fast, gradually getting slower and louder.
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