| .םילחנ ןלוגרח (434 | ||||||||||
Common
Eurasian River Warbler
Common
Eurasian River Warbler
Common
Eurasian River Warbler | ||||||||||
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,ירימזב ןלוגרחל המוד אוה ןכלו סופספ אלל םוח ןוילעה ופוג קלח :םילחנ ןלוגרח |
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| Subspecies and Distribution. Locustella fluviatilis C and E Europe, across N and C Asia E to Irtysh River. Winters E and S Africa, rare to Middle East. | ||||||||||
Descriptive notes.13-15 cm, 18 g, wingspan 19-22 cm. Small to medium-sized rather long-tailed, lithe, dull dark brown warbler, unmarked but for mottled throat, chest, and under tail-coverts and warmer tone on upper tail-coverts and tail. Plumage may have gey, olive, or umber tone. Sexes slightly different, little seasonal variation.HabitatBreeds in upper middle and middle latitude s of warm continental boreal, temperate, and stepes zones of west-central Palearcic. Requires ample stands of very dense but rarely tall vegetation, growing on shady bare soils, accessible to foraging and easy, concealed movement. Such cover may include thickets of grass and nettles among young growth of hazel, dogwoom, alder, birch, hornbeam, willow, and other trees characteristic of moist carr woodland and of floodlands, backwaters, damp fores clearings, bottmlands, bogs, sedge marshes, and even parks sometimes within cities.Food and FeedingFlying and non-flying arthropods, especially Bugs, True Flies, small beetles, and spiders. Food obtained in dense herbaceous and bushy vegetation, by running about in grassy vegetation, and among fallen leaves of alder and nettles on in woods along rivers and streams. Prey tamen directly from plants and ground, rarely in the air.Breeding.May-Jul in Eastern Europe. Nest site, on or within 30 cm of ground in thick vegetation or at base of bush. Nest, loose cup of grass stems and leaves, lined with finer grass and hair.5-6 eggs, sub-elliptical to long elliptical, smooth and glossy, white, finely but densely speckled and spotted brown and red-purple,often more at broad end. Incubation 11-12 days, by female only. Movements.Migratory. Winter quarters not well known, but lie from N South Africa N to Zambia, Mozambique, and extreme S of Malawi. Genral direction is via east Mediterranean and Levantl requiring S-E heading for western breeders, and progressively more westerly heading for eastern breeders. Passage from east of range is mostly north of Caspian Sea. Transit southward through Africa apparently concentrated via Red Sea coast, Ethiopian Rift Valley, and narrow corridor E of Kenyan highlands.Status and ConservationNot globally threatened. Has spread west in central and northern Europe since 1950s.Israel.In Israel subspecies Locustella fluviatilis very rare to scarce passage migrant over much of the country. |
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