Sri Lankan junglefowl | |
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Male | |
Female both in Sinharaja Forest Reserve, Sri Lanka | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Order: | Galliformes |
Family: | Phasianidae |
Genus: | Gallus |
Species: | G. lafayettii |
Binomial name | |
Gallus lafayettii Lesson, 1831 | |
Range |
The Sri Lankan junglefowl (Gallus lafayettii sometimes spelled Gallus lafayetii), also known as the Ceylon junglefowl or Lafayette's junglefowl, is a member of the Galliformes bird order which is endemic to Sri Lanka, where it is the national bird. It is closely related to the red junglefowl (G. gallus), the wild junglefowl from which the chicken was domesticated. However, it is even more closely related to the grey junglefowl. Sri Lankan junglefowl and red junglefowl diverged about 2.8 million years ago, whereas time of divergence between the Sri Lankan junglefowl and grey junglefowl was 1.8 million years ago. [2]
Evidence of introgressive hybridization from Sri Lanka junglefowl has also been established in domestic chicken. [2] The specific name of the Sri Lankan junglefowl commemorates the French aristocrat Gilbert du Motier, marquis de La Fayette (1757–1834).
As with other junglefowl, the Sri Lankan junglefowl is strongly sexually dimorphic; the male is much larger than the female, with more vivid plumage and a highly exaggerated wattle and comb.
The male Sri Lankan junglefowl ranges from 66–72 cm (26–28 in) in length [3] and 790–1,140 g (1.74–2.51 lb) in weight, essentially resembling a large, muscular rooster. [4] The male has orange-red body plumage, and dark purple to black wings and tail. The feathers of the mane descending from head to base of spine are golden, and the face has bare red skin and wattles. The comb is red with a yellow centre.
As with the green junglefowl, the cock does not possess an eclipse plumage.
The female is much smaller, at only 35 cm (14 in) in length and 510–645 g (1.124–1.422 lb) in weight, with dull brown plumage with white patterning on the lower belly and breast, ideal camouflage for a nesting bird. [4]
This is one of four species of birds in the genus Gallus . The other three members of the genus are red junglefowl (G. gallus), grey junglefowl (G. sonneratii), and green junglefowl (G. varius).
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Cladogram showing the species in the genus Gallus . [2] [5] |
The Sri Lankan junglefowl is most closely related to the grey junglefowl, [6] though physically the male resembles the red junglefowl. Female Sri Lanka junglefowl are very similar to those of the grey junglefowl. Like the green junglefowl, Sri Lankan junglefowl are island species that have evolved side by side with their similarly stranded island predators and competitors. Uniquely complex anti-predator behaviors and foraging strategies are integral components in the long evolutionary story of the Sri Lankan junglefowl.
It is common in forests and scrub habitats, and is commonly spotted at sites such as Kitulgala, Yala, and Sinharaja. This species is found from sea-level up to 2000 metres of elevation. [7]
As with other jungle fowl, Sri Lankan jungle fowl are primarily terrestrial. They spend most of their time foraging for food by scratching the ground for various seeds, fallen fruit, and insects.
Females lay two to four eggs in a nest, either on the forest floor in steep hill country or in the abandoned nests of other birds and squirrels. Like the grey and green junglefowl, male Sri Lankan junglefowl play an active role in nest protection and chick rearing.
The reproductive strategy of this species is best described as facultative polyandry, in that a single female is typically linked with two or three males that form a pride of sorts. These males are likely to be siblings. The female pairs with the alpha male of the pride and nests high off the ground.
Her eggs are highly variable in colour, but generally are cream with a yellow or pink tint. Purple or brownish spots are common. Occasionally, a female produces red eggs or blotched eggs.
The hen incubates her eggs, while the alpha male guards her nest from a nearby perch during the nesting season. The beta males remain in close proximity, and guard the nesting territory from intruders or potential predators, such as rival males, or snakes and mongooses. Sri Lankan junglefowl are unique amongst the junglefowl in the brevity of their incubation, which may be as short as 20 days as contrasted with the 21–26 days of the green junglefowl.
The chicks require a constant diet of live food, usually insects and isopods such as sowbugs and pillbugs. In particular, the juveniles of land crabs are also highly important to the growth and survivability of the juvenile and subadult Sri Lankan junglefowl. In captivity, this species is particularly vulnerable to a poultry disease caused by the bacteria Salmonella pullorum and other bacterial diseases common in domestic poultry. The chicks, and to a slightly lesser extent the adults, are incapable of using vegetable-based proteins and fats.[ citation needed ] Their dietary requirements cannot be met with commercial processed food materials. As a result, they are exceedingly rare in captivity.
While foraging on the ground, the Ceylon junglefowl male utters some short calls “kreeu, kreeu, kreeuu”. It also utters high-pitched rooster-like crow “cor-cor-chow” at dawn, often from a tree-branch. The female gives some “kwikkuk, kwikkukkuk”. The male is more vocal during the breeding season with advertising calls and various sounds during displays, as well with female as with rivals and in territorial defence. [7]
In Sinhala, it is known as වළි කුකුළා (wali kukula) [8] and in Tamil, it is known as இலங்கைக் காட்டுக்கோழி (ilaṅkaik kāṭṭukkōḻi).
In 1807, a tailless Sri Lankan junglefowl was described by the Dutch zoologist Coenraad Jacob Temminck (1778–1858). He named them Gallus ecaudatus. [9]
Poultry are domesticated birds kept by humans for the purpose of harvesting animal products such as meat, eggs or feathers. The practice of raising poultry is known as poultry farming. These birds are most typically members of the superorder Galloanserae (fowl), especially the order Galliformes. The term also includes waterfowls of the family Anatidae but does not include wild birds hunted for food known as game or quarry.
The Phasianidae are a family of heavy, ground-living birds, which includes pheasants, partridges, junglefowl, chickens, turkeys, Old World quail, and peafowl. The family includes many of the most popular gamebirds. The family includes 185 species divided into 54 genera. It was formerly broken up into two subfamilies, the Phasianinae and the Perdicinae. However, this treatment is now known to be paraphyletic and polyphyletic, respectively, and more recent evidence supports breaking it up into two subfamilies: Rollulinae and Phasianinae, with the latter containing multiple tribes within two clades. The New World quail (Odontophoridae) and guineafowl (Numididae) were formerly sometimes included in this family, but are now typically placed in families of their own; conversely, grouse and turkeys, formerly often treated as distinct families, are now known to be deeply nested within Phasianidae, so they are now included in the present family.
The crab-plover or crab plover is a bird related to the waders, but sufficiently distinctive to merit its own family Dromadidae. Its relationship within the Charadriiformes is unclear, some have considered it to be closely related to the thick-knees, or the pratincoles, while others have considered it closer to the auks and gulls. It is the only member of the genus Dromas and is unique among waders in making use of ground warmth to aid incubation of the eggs.
Junglefowl are the only four living species of bird from the genus Gallus in the bird order Galliformes, and occur in parts of South and Southeast Asia. One of the species in this genus, the red junglefowl, is of historical importance as the direct ancestor of the domestic chicken, although the grey junglefowl, Sri Lankan junglefowl and green junglefowl are likely to have also been involved. The Sri Lankan junglefowl is the national bird of Sri Lanka. They diverged from their common ancestor about 4–6 million years ago. Although originating in Asia, remains of junglefowl bones have also been found in regions of Chile, which date back to 1321–1407 CE, providing evidence of possible Polynesian migration through the Pacific Ocean.
The western reef heron, also called the western reef egret, is a medium-sized heron found in southern Europe, Africa and parts of Asia. It has a mainly coastal distribution and occurs in several plumage forms: a slaty-grey plumage in which it can only be confused with the rather uncommon dark morph of the Little egret ; a white form which can look very similar to the little egret although the bill tends to be paler and larger and the black form with white throat E. g. gularis of West Africa. There are also differences in size, structure and foraging behaviour. There have been suggestions that the species hybridizes with the Little Egret, and based on this, some authors treat schistacea and gularis as subspecies of Egretta garzetta. Works that consider the Western Reef Heron as a valid species include the nominate gularis and schistacea as subspecies.
The red-wattled lapwing is an Asian lapwing or large plover, a wader in the family Charadriidae. Like other lapwings they are ground birds that are incapable of perching. Their characteristic loud alarm calls are indicators of human or animal movements and the sounds have been variously rendered as did he do it or pity to do it leading to the colloquial name of did-he-do-it bird. Usually seen in pairs or small groups not far from water, they sometimes form large aggregations in the non-breeding season (winter). They nest in a ground scrape laying three to four camouflaged eggs. Adults near the nest fly around, diving at potential predators while calling noisily. The cryptically patterned chicks hatch and immediately follow their parents to feed, hiding by lying low on the ground or in the grass when threatened.
The red junglefowl, also known as the Indian red junglefowl, is a species of tropical, predominantly terrestrial bird in the fowl and pheasant family, Phasianidae, found across much of Southeast and parts of South Asia. The red junglefowl was the primary species to give-rise to today's many breeds of domesticated chicken ; additionally, the related grey junglefowl, Sri Lankan junglefowl and the Javanese green junglefowl have also contributed genetic material to the gene pool of the modern chicken.
The Sri Lanka frogmouth, Sri Lankan frogmouth or Ceylon frogmouth is a small frogmouth found in the Western Ghats of south India and Sri Lanka. Related to the nightjars, it is nocturnal and is found in forest habitats. The plumage coloration resembles that of dried leaves and the bird roosts quietly on branches, making it difficult to see. Each has a favourite roost that it uses regularly unless disturbed. It has a distinctive call that is usually heard at dawn and dusk. The sexes differ slightly in plumage.
The little cormorant is a member of the cormorant family of seabirds. Slightly smaller than the Indian cormorant it lacks a peaked head and has a shorter beak. It is widely distributed across the Indian Subcontinent and extends east to Java, where it is sometimes called the Javanese cormorant. It forages singly or sometimes in loose groups in lowland freshwater bodies, including small ponds, large lakes, streams and sometimes coastal estuaries. Like other cormorants, it is often found perched on a waterside rock with its wings spread out after coming out of the water. The entire body is black in the breeding season but the plumage is brownish, and the throat has a small whitish patch in the non-breeding season. These birds breed gregariously in trees, often joining other waterbirds at heronries.
The purple sunbird is a small bird in the sunbird family found mainly in South and Southeast Asia but extending west into parts of the Arabian peninsula. Like other sunbirds they feed mainly on nectar, although they will also take insects, especially when feeding young. They have a fast and direct flight and can take nectar by hovering like a hummingbird but often perch at the base of flowers. The males can appear all black in harsh sunlight but the purple iridescence is visible on closer observation or under good light conditions. Females are olive above and yellowish below.
Loten's sunbird, also known as the long-billed sunbird or maroon-breasted sunbird, is a sunbird endemic to peninsular India and Sri Lanka. Named after Joan Gideon Loten, who was the Dutch governor of colonial Ceylon, it is very similar to the purple sunbird that is found in the same areas and also tends to hover at flowers for nectar, but can be distinguished by the longer bill, the maroon band on the breast and brownish wings. Like other sunbirds, it is also insectivorous and builds characteristic hanging nests.
The black-legged kittiwake is a seabird species in the gull family Laridae. This species was first described by Carl Linnaeus in his landmark 1758 10th edition of Systema Naturae as Larus tridactylus. The English name is derived from its call, a shrill 'kittee-wa-aaake, kitte-wa-aaake'. In North America, this species is known as the black-legged kittiwake to differentiate it from the red-legged kittiwake, but in Europe, where it is the only member of the genus, it is often known just as kittiwake.
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The snow partridge is a gamebird in the pheasant family Phasianidae found widely distributed across the high-altitude Himalayan regions of Pakistan, China, India and Nepal. It is the only species within its genus, and is thought to be the most basal member of the "erectile clade" of the subfamily Phasianinae. The species is found in alpine pastures and open hillside above the treeline but not in as bare rocky terrain as the Himalayan snowcock and is not as wary as that species. Males and females look similar in plumage but males have a spur on their tarsus.
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The green junglefowl, also known as Javan junglefowl, forktail or green Javanese junglefowl, is the most distantly related and the first to diverge at least 4 million years ago among the four species of the junglefowl. Hybridization with domestic chicken has also been reported. Green junglefowl is a medium-sized bird in the pheasant family Phasianidae.
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