Congo Martin
Riparia congica
A typical small martin with brown upperparts, pale underparts, and a diffuse gray-brown breast band. Resident and extremely localized, restricted to the Congo River and a handful of its tributaries, breeding colonially in sandbanks. Despite being fairly common, the species’ vocalizations are unknown. Sand Martin is larger than Congo Martin and has a bolder breast band delineating a white throat; Brown-throated Martin has a dark throat.
识别特征
The 11 cm long Congo martin is light brown above with a slightly darker crown and wings. It has a dark line through the eye. The underside of the body is white except for a pale brown breast. It does not have the distinct narrow breast band shown by the sand martin. The bill is black and the legs are brown. Sexes are similar, but the young have pale tips to the feathers on the back, rump and wings.<p>The call has not been recorded.<p>Although the indistinct breast band of the Congo martin is different from the clearly defined markings of the sand martin, in practice it is not easy to distinguish the resident species from the winter migrant.
分类信息
- 学名
- Riparia congica
- 命名信息
- (Reichenow, 1888)
- 目
- Passeriformes
- 科
- Hirundinidae
- 属
- Riparia
分布与栖息地
- 迁徙
- Resident species
行为
The food of this species consists of small insects, such as gnats and other flies, caught on the wing over the river or in clearings and other open areas within a few miles of it. It feeds in small flocks or with other swallows, especially wintering sand martins.
保护状况
This locally abundant species has a range with an estimated extent of 80,000 km2. The population size is believed to be large, and the species is not believed to approach the thresholds for the population decline criterion of the IUCN Red List (i.e. declining more than 30% in ten years or three generations). For these reasons, the species is evaluated as Least Concern.
- 种群趋势
- stable
照片
分布
其他鸟类
Atlas Flycatcher
Ficedula speculigera
Very similar and closely related to European Pied Flycatcher. Males have mixed features of Collared and European Pied Flycatchers, but note very large white wing patch and big white forehead. Also note the absence of a white collar and pale rump patch on Atlas Flycatcher. Females are very difficult to distinguish, but note gray upperparts with paler rump and big white primary base patch. Song is a cheery up-and-down series, quite similar to that of European Pied. Calls subtly different from European Pied Flycatcher with a slightly more metallic "whit" and a slower tempo. Inhabits a variety of wooded habitats in the Atlas Mountains.
Variegated Bristle-Tyrant
Pogonotriccus poecilotis
Small flycatcher found in foothill and subtropical forest from around 1500-2300m. Grizzled face pattern with bold black and white crescent on cheek like some other bristle-tyrants and tyrannulets. Look for Variegated’s bold cinnamon wingbars and bicolored bill. Sexes alike. Found singly or in pairs, usually in lower to middle levels of forest, often following a mixed species flock. Listen for high twittering series of “tsit” notes, sometimes with a longer “tsee!” at the end.
Grayish Eagle-Owl
Bubo cinerascens
A fairly large gray owl with small ear tufts. The eyes are dark brown. Found in a variety of woodland and savanna habitats, often around cliffs and other rocky areas. Frequently in pairs. Very similar to Spotted Eagle-Owl, but there is little range overlap, and Grayish is easily separated by its dark eyes. The call is a single short “hoooo.”
开始您的观鸟之旅
在户外识别鸟类，并在下一次观察时随手查阅鸟类图鉴。