African Crake
A species of Corn Crakes Scientific name : Crecopsis egregia Genus : Corn Crakes
African Crake, A species of Corn Crakes
Botanical name: Crecopsis egregia
Genus: Corn Crakes
Content
Description General Info
Description
The African crake is a smallish crake, 20–23 cm (7.9–9.1 in) long with a 40–42 cm (16–17 in) wingspan. The male has blackish upperparts streaked with olive-brown, apart from the nape and hindneck which are plain pale brown; there is a white streak from the base of the bill to above the eye. The sides of the head, foreneck, throat and breast are bluish-grey, the flight feathers are dark brown, and the flanks and sides of the belly are barred black and white. The eye is red, the bill is reddish, and the legs and feet are light brown or grey. The sexes are similar in appearance, although the female is slightly smaller and duller than the male, with a less contrasting head pattern. Immature birds have darker and duller upperparts than the adult, a dark bill, grey eye, and less barring on the underparts. There are no subspecific or other geographical variations in plumage. This crake has a complete moult after breeding, mainly prior to migration. Although this species occurs in fairly open habitats, it lacks the pure white undertail used for signalling in open water or gregarious species like the coots and moorhens. The African crake is smaller than the corn crake, which also has darker upperparts, a plain grey face and different underparts barring pattern. In flight, the African species has shorter, blunter wings with a less prominent white leading edge, and deeper wingbeats than its relative. Other sympatric crakes are smaller with white markings on the upperparts, different underparts patterns and a shorter bill. The African rail has dark brown upperparts, a long red bill and red legs and feet.
Size
23 cm
Feeding Habits
African Crake has a varied diet, foraging mainly for invertebrates like earthworms and insects, while also eating small vertebrates, plant material, and seeds. African Crake's foraging behavior involves ground pecking, digging, or wading. African Crake uniquely feeds in groups, sometimes alongside other grassland birds.
Habitat
African Crake typically resides in a variety of grassland environments. These range from seasonally wet areas on the fringes of freshwater swamps, marshes, and open water bodies to drier grasslands amidst light woodlands. Additionally, african Crake is found in agricultural settings such as rice, maize, and cotton fields, as well as neglected farmlands and lush sugar cane plantations near marshes. Proximity to human settlements is not uncommon for this species. Preferred grassland territories may feature thickets or dense vegetation around large termite mounds, which serve as protective refuges. African Crake's grassland habitats are subject to seasonal fires, which can trigger temporary migrations.
Dite type
Granivorous
General Info
Behavior
The African crake is active during the day, especially at dusk, during light rain, or after heavier rain. It is less skulking and easier to flush from cover than other crakes, and is often seen at the edges of roads and tracks. An observer in a vehicle can approach to within 1 m (3.3 ft). When a bird is flushed it normally flies less than 50 m (160 ft), but new arrivals may occasionally fly twice as far. A flushed crake will frequently land in a wet area or behind a thicket, and crouch on landing. In short grass, it can escape from a dog using its speed and manoeuvrability, running with the body held almost horizontal. It may roost in a depression near grass tussock and it will bathe in puddles. The African crake is territorial on both the breeding and non-breeding grounds; the male threat display involves the bird standing upright and spreading the feathers of the flanks and belly like a fan to show the barred underparts. He may march towards the intruder, or walk side by side with another displaying male. The female may accompany the male, but with feathers less widely fanned. Fighting at territorial boundaries involves the male birds jumping at each other and pecking. Paired females will attack other females in the territory, especially if the male has shown an interest in them.
Distribution Area
The African crake occurs throughout sub-Saharan Africa from Senegal east to Kenya, and south to KwaZulu-Natal, South Africa, except in arid areas of south and southwest Africa where the annual summer rainfall is less than 300 mm (12 in). It is widespread and locally common in most of its range, apart from the rainforests and the drier regions. Nearly all the South Africa population of about 8,000 birds occur in KwaZulu-Natal and the former Transvaal Province, and much good habitat is protected in the Kruger National Park and iSimangaliso Wetland Park. This crake is only a vagrant to southern Mauritania, southwest Niger, Lesotho, South Africa's northern and eastern Cape Province and North West Province, and southern Botswana. Further afield, it is rare on Bioko Island (Equatorial Guinea), and there have been two records each for São Tomé and Tenerife, the Canary Islands birds being the first records for the Western Palaeartic. Holocene remains from North Africa suggest that the species was more widespread when the climate was wetter in what is now the Sahara. This crake is a partial migrant, but although it is less skulking than many of its relatives, its movements are complex and poorly studied; the distribution map is therefore largely hypothetical. It is mainly a wet-season breeder, and many birds move away from the equator as soon as the rains provide sufficient grass cover to allow them to breed elsewhere. Southward movement is mainly from November to April, the return north beginning when burning or drought reduces the grass cover again. This species is present throughout the year in some West African countries, and in equatorial regions, but even in those areas numbers vary seasonally due to local movements; north-south migration has been noted within countries including Nigeria, Senegal, The Gambia, Ivory Coast and Cameroon. Migration takes place at night and involves small groups of up to eight birds; It may be one or two months after the rains begin before the grass is sufficiently high for breeding birds to arrive. Even in southern Africa, some birds may stay after breeding if enough usable habitat remains. The habitat is predominantly grassland, ranging from wetland edges and seasonal marshes to savanna, lightly wooded dry grassland, and grassy forest clearings. The crake also frequents corn, rice and cotton fields, derelict farmland and sugarcane plantations close to water. A wide range of grass species are used, with a preferred height of 0.3–1 m (0.98–3.28 ft) tall but vegetation is acceptable up to 2 m (6.6 ft) tall. It normally prefers moister and shorter grassland habitats than does the corn crake, and its breeding territories often contain or are close to thickets or termite mounds. It occurs from sea level to 2,000 m (6,600 ft) but is rare in the higher altitude grasslands. Its grassland habitat is frequently burned in the dry season, forcing the birds to move elsewhere. In an East African study, the average area occupied by one bird was 2.6 hectares (6.4 acres) when breeding, and 1.97 to 2.73 ha (4.9 to 6.7 acres) at other times. The highest densities occur in lush or moist grassland such as the Okavango Delta.
Species Status
The African crake has a huge breeding range estimated at 11,700,000 km (4,500,000 mi). Its population is unknown, but it is common in most of its range, and its numbers appear to be stable. It is therefore classed as Least Concern on the IUCN Red List. Overgrazing, agriculture and the loss of wetland and moist grassland have reduced the availability of suitable habitat in many areas, such as some parts of the southern KwaZulu-Natal coast which have been urbanised or planted with sugarcane. In other areas, grassland may have increased locally in recent years as woodland is cleared. This crake is considered to be good eating, and is killed for food in some regions. Despite these adverse factors, it appears to be under no real threat. Although most rails in the Old World are covered by the Agreement on the Conservation of African-Eurasian Migratory Waterbirds (AEWA), the African crake is not listed even in Kenya, where it is considered "near-threatened". Like its relative, the corn crake, it is too terrestrial to be classed as a wetland species.