Plain-breasted Ground Dove
Columbina minuta
Small, inconspicuous dove of savannas and open grassland with scattered low bushes and palmettos; also found locally in cane fields and pastures. Usually found in pairs or small groups, sometimes associating with other ground doves. Both sexes are rather plain overall, with diagnostic purple marks on the back, although the color is often hard to see. The female can be easily confused with the much commoner Ruddy Ground Dove, which also has a plain breast, but the Ruddy Ground Dove is larger and warmer brown overall; also note vocal differences.
识别特征
With a total length of approximately 14–16 cm (5.5–6.5 in) and a weight of 24–26 g (0.85–0.92 oz), this species averages slightly smaller than the common ground dove. The plain-breasted ground dove may be the smallest pigeons or doves by mass, though the more heavily built but almost tailless dwarf fruit dove of Southeast Asia is typically shorter in overall length.
分类信息
In 1760 the French zoologist Mathurin Jacques Brisson included a description of the plain-breasted ground dove in his six volume Ornithologie based on a specimen that he mistakenly believed had been collected in Santo Domingo of the Dominican Republic. He used the French name La petite tourterelle brune d'Amérique and the Latin Turtur parvus fuscus americanus. Although Brisson coined Latin names, these do not conform to the binomial system and are not recognised by the International Commission on Zoological Nomenclature. When in 1766 the Swedish naturalist Carl Linnaeus updated his Systema Naturae for the twelfth edition, he added 240 species that had been previously described by Brisson. One of these was the plain-breasted ground dove which he placed with the other pigeons in the genus Columba. Linnaeus included a brief description, coined the binomial name Columba minuta and cited Brisson's work. The specific name minuta is from the Latin minutus meaning "small". The type locality was subsequently corrected to Cayenne in French Guiana. The plain-breasted ground dove is now placed in the genus Columbina that was introduced by the German naturalist Johann Baptist von Spix in 1825.<p>Four subspecies are recognised:
- 学名
- Columbina minuta
- 命名信息
- (Linnaeus, 1766)
- 目
- Columbiformes
- 科
- Columbidae
- 属
- Columbina
分布与栖息地
It is found in Argentina, Belize, Bolivia, Brazil, Colombia, Costa Rica, Ecuador, El Salvador, French Guiana, Guatemala, Guyana, Honduras, Mexico, Nicaragua, Panama, Paraguay, Peru, Suriname, Trinidad and Tobago, and Venezuela. Its natural habitats are dry savanna, subtropical or tropical dry shrubland, subtropical or tropical high-altitude shrubland, subtropical or tropical seasonally wet or flooded lowland grassland, and heavily degraded former forest.
- 迁徙
- Resident species
保护状况
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
Mindoro Boobook
Ninox mindorensis
A fairly small owl of lowland and foothill forest and woodland. Rather dark brown on the head and back and reddish-brown on the chest, with bright yellow eyes and thin white eyebrows forming a V. Mindoro Scops-Owl is similar in size and color, but Mindoro Boobook is finely barred all over. Much smaller than Chocolate Boobook, without white on the chest. Song is a fairly high-pitched, descending mournful whistle, “wiiiiuuuuu.”
Red-backed Mousebird
Colius castanotus
A brownish-gray dumpy-bodied bird with a long scruffy tail, a reddish back, brown ears, a brown crest, and pale eyes. Occurs in small sociable groups in forest edge, woodland, thorn scrub, and cultivated areas along the Angolan escarpment, where it is endemic. One of the most familiar and beloved birds of Angola, where it is known as the “Rabo-de-junco”. Scrambles through bushes and tangles, creeping on short legs. In flight, it appears heavy, fluttering rapidly. Calls include a harsh “chee” and twittering notes like those of Speckled Mousebird, which differs from Red-backed by being lightly barred on the breast and mantle, having a brown back, and in the area of overlap in northern Angola, having dark eyes.
Chapman's Bristle-Tyrant
Pogonotriccus chapmani
Tiny flycatcher of tepui highlands. Appears plain olive-green above and pale yellow below, with bold buffy wing bars and longish tail. Generally uncommon in humid forest above 800 meters, where pairs or small family groups forage actively, sallying to foliage for insects, usually in terminal leaf clusters. Often found with mixed-species flocks. Vocalizations include a distinctive, two- or three-noted descending call, with a squeezed quality; may also give a high, thin rattling trill when excited. Unlikely to be mistaken for other species in its limited range.
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