Ladder-backed Woodpecker
Dryobates scalaris
Small woodpecker of arid habitats, including mesquite scrub and dry woodlands. Look for black-and-white barring on the back, patterned flanks, and buffy wash on the body. Males have a red cap, often raised and fluffy-looking. Often forages on small branches, and sometimes visits bird feeders. Most similar to Nuttall’s Woodpecker, but range barely overlaps. Also compare with Downy Woodpecker, which has clean flanks and lacks bars on the back.
识别特征
The ladder-backed woodpecker is a small woodpecker about 16.5 to 19 cm (6½ to 7½ inches) in length. It is primarily colored black and white, with a barred pattern on its back and wings resembling the rungs of a ladder. Its rump is speckled with black, as are its cream-colored underparts on the breast and flanks. Southern populations have duskier buff breasts and distinctly smaller bills. Adult males have a red crown patch that is smaller in immatures and lacking in adult females. The ladder-backed woodpecker is very similar in appearance to Nuttall's woodpecker, but has much less black on its head and upper back, and the range of the two species only intersects a minimal amount in southern California and northern Baja California. Hybrids are known.<p>Ladder-backed woodpeckers nest in cavities excavated from tree trunks, or in more arid environments a large cactus will do. The female lays between 2 and 7 eggs, which are plain white. The eggs are incubated by both sexes, but the nesting period and other details are unknown.<p>Like most other woodpeckers the ladder-backed woodpecker bores into tree-trunks with its chisel-like bill to hunt for insects and their larva, but it also feeds on fruit produced by cacti.
分类信息
- 学名
- Dryobates scalaris
- 命名信息
- (Wagler, 1829)
- 目
- Piciformes
- 科
- Picidae
- 属
- Dryobates
分布与栖息地
The ladder-backed woodpecker is fairly common in dry brushy areas and thickets and has a rather large range. The species can be found year-round over the southwestern United States (north to extreme southern Nevada and extreme southeastern Colorado), most of Mexico, and locally in Central America as far south as Nicaragua.
- 迁徙
- Resident species
保护状况
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
Buzzing Flowerpecker
Dicaeum hypoleucum
A tiny bird of forest and scrub from the lowlands to low elevations in the mountains. Darker above and paler below, with a fairly long, thin, slightly curved bill. Races differ in color. Northern birds have brownish bellies, while southern birds are black or dark brown above and whitish or pale gray below. Females are duller. Similar to Bicolored Flowerpecker, but White-bellied has a longer, thinner bill. Also known as Buzzing Flowerpecker, as it gives a high-pitched insect-like buzz.
Malleefowl
Leipoa ocellata
Heavily-built grayish ground-dwelling bird with short heavy legs, gray neck and chest, and strongly marked (camouflaged) back and tail. Scarce endemic resident of semi-arid open forest (typically the multi-stemmed "Mallee" Eucalypt vegetation). Builds large nest-mounds from leaf litter. Most sightings are of single birds or pairs.
Fischer's Starling
Lamprotornis fischeri
An unusual gray-and-white starling of dry country. Note the gray hood, pale eye, whitish crown, and gray rump. The large white patches on the underwing are distinctive in flight. Found in dry savanna, in cultivated areas, and around human habitation, usually in flocks. Most similar to Wattled Starling, but has a gray rather than white rump, a pale eye, and a distinct gray hood. The most common call is a rising, slurred whistle, sometimes given in a long series.
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