GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW) | ||||||
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19:37 Jan 10, 2015 |
Polish to English translations [PRO] Science - Zoology | |||||
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| Selected response from: Frank Szmulowicz, Ph. D. United States Local time: 01:10 | ||||
Grading comment
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Summary of answers provided | ||||
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2 +3 | nomadic birds |
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Discussion entries: 1 | |
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nomadic birds Explanation: IMO. -------------------------------------------------- Note added at 3 mins (2015-01-10 19:40:28 GMT) -------------------------------------------------- Differing from migratory birds, nomadic birds "follow their food source", which depends either on rain in arid and semi-arid regions or on irregular fruiting, seeding or flowering in schlerophyllous forests and woodlands. Many desert birds in Australia and Africa are nomads without permanent territories, as are nectar-feeding honeyeaters in mesic parts of Australia and some finches in the northern taiga that depend on conifer trees that seed very erratically since their cycles are nonannual. Nomadic birds have a number of adaptations to deal with their lifestyles: opportunistic breeding: desert birds can breed in any month and taiga finches can reproduce in colder conditions than almost any other living organism short incubation periods so that eggs hatch rapidly after a food source becomes available. Desert chats in Australia and larks in Africa can hatch their eggs as little as ten days after the last egg is laid multiple brooding: in a good year many nomadic birds can lay four clutches, so that though nomads' clutch sizes are medium-sized (three or four eggs) and relatively insensitive to latitude, they can have as high overall fecundity as high latitude residents that lay ten eggs per clutch unusual water intake: some desert birds in Australia never drink and nomadic taiga finches like the crossbill can drink snow http://www.answers.com/Q/What_are_nomadic_birds ccccccccccccccccccccccccccccccccc -------------------------------------------------- Note added at 6 mins (2015-01-10 19:43:31 GMT) -------------------------------------------------- _____________________________ Birds Without Boundaries Migratory, Nomadic & Other Wandering Birds Nomadic birds move between locations in what appears to be an erratic fashion. These birds seem to be more ‘free spirited’ in their wandering although the underlying reason for movement remains the same - availability of food and water. Typically nomadic birds are associated with desert locations and other harsh environments. One example of a nomadic or wandering bird is the griffon vulture which can be found nesting among the Gamla cliffs in the north of Israel. The griffon vulture is one of the most impressive raptures one sees in Israel. It can reach a length of over a meter and wing span of 2.7 meters. Its strength and size enable it, during its daily search for food, to fly distances of over 100 km by soaring and gliding - hardly moving its wings. The griffon vulture is important for the balance of the ecosystem since it feeds on dead animals, thus clearing the environment and helping to prevent the spread of disease. It is well documented by nature reserve authorities, and is considered a protected species. While some of the vultures in the area are truly migratory (returning seasonally) others have been defined as either nomadic or wandering since they come and go without following a repetitive pattern. It was found that some vultures that made their home in Gamla disappeared from the area after a few years. They were later identified in Spain, and then tracked back to Gamla http://www.wysinfo.com/Migratory_Birds/Migratory_Birds_Witho... |
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Grading comment
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