| .הרופא תיוולע (478 | ||||||||||
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ןיבמ דחוימב תיסופיט .הפועמב תינניחו תיטגרנא ,תירירבשו הנטק :הרופא תיוולע | ||||||||||
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Subspecies and Distribution.
P. t. trochilus western Europe N to S Sweden, E to S Poland and N Rumania. P. t. acredula from Norway, Sweden and eastern Europe east of nominate, E to Yenisey. P. t. yakutensis Siberia east of acredula. | ||||||||||
Descriptive notes.10-12 cm, 8-12 g, wingspan 17-22 cm. Small, slight, graceful warbler, light on the wing and active in cover.Epitome of Phylloscopus, particularly of small species which lack wing-bars and striking supercilium. Plumage usually quite pale and bright, with essentially olive upperparts and yillow-white underparts, yellow-white supercilium, and yellow-brown legs. Song distinctive. Sexes similar, no marked seasonal variation. HabitatBreeds in west Palearctic in middle and upper latitudes within temperate and boreal climatic zones, continental and oceanic. Differs in being a bird less of mature woodland than of scrub, second growth, and transitions to more open habitats.Unlike P. collybita, will readily settle on shrubby, bushy, to cleared ground starting regrowth, even in absence of trees. Thus attracted to fringe areas such as birches beyond arctic taiga, heath lands, or forest clearings. Food and FeedingInsects and spiders, in autumn also berries. Food obtained mostly by picking from leaves, twigs, and branches, also flycatching.Breeding.Mid Apr to mid Jun in C and W Europe, May-Jul in Finland, May to mid Jul in N-W European USSR. Nest site, on ground, well concealed in vegetation, including herbs, bases of low shrubs and trees, and grass tussocks.Nest, domed structure of dry grass, leaves, stems, moss, lichen, twigs, conifer needles, bark fibre, often with rootlets and pieces of rotten wood, lined with finer grasses, rootlets, andimal hair, and feathers. 4-8 eggs, sub-elliptical, smooth and glossy, white with fine speckles of red and red-brown, sometimes with sparse larger spots of red, red-brown, or buff, sometimes concentrated at broad end. Incubation, 12-14 days, by female only. Movements.All populations migratory, wintering extensively in sub-Saharan Africa from S Senegal E to Ethiopia, S to South Africa. From extreme east of breeding range, route thus exceptionally long at least 12.000 km.Status and ConservationNot globally threatened. The most commonest Phylloscopus , estimated abut 1000.000.000 pairs.Israel.In Israel three subspecies P. t. acredula an abundant migrant.P. t. trochilus a common migrant. P. t. yakutensis uncommon but regular migrant in south Israel, mainly in Eilat. |
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