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Sunday, September 6, 2009

Bird's in Sri lanka (Part 3)

Lanka Bata Eti Kukula - Sri Lanka green Billed Coucal

Lanka Bata Etikukula
Endemic & Threatened Birds in Sri Lanka
Local Name : The Green Billed Coucal
Scientific Name : Centropus chlorohynchus Blyth

1. Slightly smaller than the Common Coucal, from which it may at once be distinguished by its leg, like-green beak; its wings, too, are much darker chestnut, and the sheen on the head and neck is purple, not blue. Sexes alike.

2. A very shy and elusive bird, it is far better known by its calls than by sight but, wherever the wet-zone forests have been spared the axe, it is still fairly common; its range, however, is rapidly dwindling and as it shows no sign of being able to adjust itself to new conditions, there can be no doubt that its days will soon be numbered - with those of several ither endemic forest birds - unless wise foresight reserves extensive forest sanctuaries in the wet zone.

3. This coucal is found only in the forests of the wet zone, west, south-west and south of the main mountain massif, which it ascends to 2,500 feet, or perhaps higher.

Lanka Pitathbala Vana Bssa - Chestnut Backed Owlet

Lanka Pitathabala Vana-Bassa
Endemic & Threatened Birds in Sri Lanka
Local Name : The Chestnut-Backed Owlet
Scientific Name : Glaucidium castanonotum (Blyth)

1. About the size of the Collared Scops Owl. Sexes alike. This little owl is very like the last species in shape, size, and general apperance but it is chestnut on back, scapulars, and wing-coverts, and has white underparts marked with blackish shaft-streaks, and bars on the flanks. Some specimens have white spots on the outer scapulars. Irides bright yellow; feet pale yellow.

2. It is shy and wary, and as it frequents the tops of tall trees, usually on steep hillsides, it is seldom seen. It is very diurnal in habits, often hunting and calling in broad daylight. The Mukalan Bassa feeds mainly on insects, such as beetles, but also captures mice, small lizards, and small birds, on occasion; most likely, the larger vertebrate forms of prey are taken only when young are being fed.

The breeding season is from March to May, the eggs being laid on the bare wood in a hole in the trunk or limb of a tree. The two glossy white eggs measure about 35 × 28.2 mm.

3. This owl appears to have been fairly common in Legge's time in many parts of the southern half of the Island, especially the hills and wet-zone low country extending to outskirts of Colombo; but its range has undoubtedly shrunk very greatly since then, and it is now found sparingly in the remaining forests of the wet zone and adjoining hills up to 6,500 feet.

Alu Kadaththa - Sri Lanka grey hornbill

Alu Kadatta
Endemic & Threatened Birds in Sri Lanka
Local Name : The Ceylon Grey Hornbill
Scientific Name : Ocyceros gingalensis (Shaw)

1. Size about that of the Black Crow, but with much longer bill and tail. Sexes alike, except that the bill of the female is dull black with a long cream patch on the side of the side of the upper mandible.

2. It lives in pairs or small flocks except when some wild fig tree is in fruit, when large numbers will assemble to feed on the fruit. In spite of its size it is often very inconspicuous as it has a habit of sitting quietly among foliage, in a very upright position, turning its head stealthily in all directions while scanning the environment for food. Its favourite abode is the medium levels of tall forest, where hanging creepers and lianas supply convenient perches as well as concealment.

The breeding season is from April to August. The nest is cavity in the bole of a large tree, usually at height from the ground. The eggs number one to three, are white, soon getting dirty, and measure about 41.5×33 mm.

3. This hornbill is common in all low-country forested areas, both wet and dry zone, and it occasionally ascends the hills to 4,000 feet though it is decidedly rate at such elevations.

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