Thursday, October 28, 2010

Birds of Nevis


Nevis has issued the stamp series depicted birds of Nevis, Broad-winged Hawk, Red-tailed Hawk, Little Blue Heron, and Great White Heron. The stamps has issued on year 1975.

Broad-winged Hawk (20c), (Buteo platypterus) is a small hawk of the Buteo genus.Broad-winged Hawks inhabit forested areas.The diet is variable, but small mammals, like rodents and shrews, are the most regular prey. They are thought to take many amphibians,reptiles, insects and other invertebrates.Adult birds range in size from 34 to 45 cm , weight from 265 to 560 g and have a wingspan from 81 to 100 cm .

Red-tailed Hawk (40c),(Buteo jamaicensis)road-winged Hawks are long-distance migrants.They travel in large flocks during migration. During days with favourable winds, enormous kettles of tens of thousands of Broad-wings can be seen along flyways. Red-tailed Hawk is a bird of prey ,occupies a wide range of habitats and altitudes, including deserts, grasslands, coniferous and deciduous forests, tropical rainforests , agricultural fields and urban areas . It lives throughout the North American continent, except in areas of unbroken forest or the high arctic . The Red-tailed Hawk is carnivorous , and an opportunistic feeder. Its diet is mainly small mammals , but it also includes birds and reptiles . Prey varies with regional and seasonal availability, but usually centers on rodents , comprising up to 85% of a hawk's diet

Little Blue Heron (60c),Egretta caerulea, is a small heron.This species is about 60 cm (24 in.) long, with a 102 cm (40 in.) wingspan, and weighs 325 g .It is a medium-large, long-legged, heron with a long pointed blue or greyish bill with a black tip.The Little Blue Heron stalks its prey methodically in shallow water, often running as it does so. It eats fish , frogs crustaceans, small rodents and insects.It breeds from the Gulf states of the USA through Central America and the Caribbean south to Peru and Uruguay .

Great White Heron ($3) are a white colour-phase of great blue herons and are only found in the Florida Keys. The refuge was created to protect great white herons from extinction since the population was decimated by the demand for feathered hats.

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