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White-vented storm-petrel, Oceanites gracilis, Elliot's storm-petrel, Despite being numerous on...

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Caption: White-vented storm-petrel, Oceanites gracilis, Elliot's storm-petrel, Despite being numerous on one of the most studied island groups in the world, only around a dozen nests of the white-vented storm-petrel have ever been discovered (2). It was described in 1859 as the most slender of storm petrels and accordingly given the specific name gracilis. It is predominately brown to dark grey in colour, tending to be darker on its upperparts and paler on its throat and chest. The square-ended tail is black, except for a white bar that merges with a white-tipped rump to form a conspicuous white crescent. Given that until 2003 only one white-vented storm-petrel nest had ever been found, it is not surprising that very little is known about the biology of this bird. Whereas the first nest discovered in 1979 comprised scraps of vegetation underneath low plants (3), the roughly 11 nests found most recently were located in rocky crevices (2). It is believed, on the basis of examinations of dead birds from the Galápagos, that eggs are laid during the Austral winter from April to August. In common with the feeding behaviour of several other species of storm petrel, the white-vented storm petrel flutters over the sea surface, appearing to "walk-on-water", in search of plankton and scraps of fish killed by larger predators. This unusual technique is thought to be the origin of the name petrel, derived from the biblical account of St Peter walking on water. Occurs along the cold water Humboldt Current off the west coast of South America (3). The only nests ever found are located on Isla Chungungo, Chile, but the white vented storm petrel is thought to also breed on small rocky islets from Chile north to the Galápagos. It is suspected that there must be a breeding population of several thousand O. g. galapagoensis on the Galápagos, Isla Isalbella, Galapagos Islands, Ecuador, South America; Isabel Island; PetrelWVS8717czxse.tif
Location: Galapagos Islands: Isla Isalbella
Copyright: © Ann & Rob Simpson
Agent: AnnRobSimpson@snphotos.com
Release Available: © Fees for one time use only unless negotiated otherwise
Photographer Code: 06002000, 06002002
AGPix ID: AGPix_RoAnSi18_1068
Photo Alignment: 35mm (horizontal)
Comments: © Ann & Rob Simpson - Simpson's Nature Photography, 1932 E Refuge Church Rd., Stephens City, VA 22655 Ph & Fax 540 869 2051 - AnnRobSimpson@snphotos.com - www.agpix.com/snphotos

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Ann & Rob Simpson
1932 E Refuge Church Rd.
Stephens City VA 22655-9607

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Eastern Box Turtle
© Ann & Rob Simpson
Silkworm is the larva or caterpillar or imago of the domestic silkmoth, Bombyx mori. It is an economically important insect, being a primary producer of silk. A silkworm's preferred food is white mulberry leaves, though they may eat other mulberry species and even osage orange. Domestic silkmoths are closely dependent on humans for reproduction, as a result of millennia of selective breeding. Wild silkmoths are different from their domestic cousins as they have not been selectively bred; they are not as commercially viable in the production of silk. silk worms, to grow and eat, Sericulture, the practice of breeding silkworms for the production of raw silk, has been under way for at least 5,000 years in China,[1] from where it spread to Korea and Japan, India and later the West. The silkworm was domesticated from the wild silkmoth Bombyx mandarina, which has a range from northern India to northern China, Korea, Japan, and the far eastern regions of Russia. The domesticated silkworm derives from Chinese rather than Japanese or Korean stock. Domestic silkmoths are very different from most members in the genus Bombyx; not only they have lost the ability to fly, but also their color pigments are los.t Sa Kaeo Community College, Sa Kaeo, is a province (changwat) of Thailand. It is in the east of Thailand about 200 km from Bangkok. Thailand, Asia; Pacific Rim; THAI034856.CR2
© Ann & Rob Simpson