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י 450) שיחנית זית

Olive-tree Warbler
Olive-tree Warbler
Olive-tree Warbler










Hippolais olivetorum
Hippolais olivetorum
Hippolais olivetorum


:שיחנית זית
. השיחנית הגדולה בין שאר השיחניות
. חלקי גופה העליונים בצבע חום אפור-זית, חלקי גופה התחתונים בהירים יותר
הקודקוד קמור, גבת העין בהירה, המקור ארוך, שולי הכנף בהירים
. והרגלים כחולות-אפורות כהות
. בית גידולה משתרע באזור הבלקן, טורקיה ולבנון. חורפת במערב ודרום אפריקה
. מקום חיותה שדות שיחים, חורשים,יערות דלילים ומטעים
. בארץ עוברת אורח לא שכיחה . מבקרת ויתכן דוגרת קיץ נדירה ביותר
.
Subspecies and Distribution.
Hippolais oliverorum S-E Europe, Asia Minor and Nort Levant. Winters S-E Africa. םםםםםםםםםםםםםםםםםםםםםםםםםםםםםםםםםםם םםםםםםםםםםםםםםםםםםםםםםםםםםםםםםםםםםםםםםםםםםםםםםםםםםםם
Descriptive notes.
15-16 cm, 19 g, wingspan 24-26 cm. Close in size to Barred Warbler but with longer bill and slightly shorter tail.
Large pear-shaped warbler, with heavy bill, rather flat crown, noticeably long wings, and heavy legs. Largest and deepest-billed Hippolais, with bulk recalling larger Acrocephalus warbler at times.
Closed wing-point forms 1/3 of total wing length, with primary-tips reaching beyond end of upper tail-coverts. Dusty or brownish-grey above, dusty-white below, with quite broad fore-supercilium, fairly distinct eye-ring, indistinct pale wing-bar, pale edges to inner flight-feathers forming wing panel, and greyish wash from side of neck to rear flank.
Sexes similar, little seasonal variation.
Habitat. Breeds in lower middle latitudes of west Palearctic in east Mediterranean zone. Also more coastal, insular, and arboreal, not ranging deep into continental hinterland but inhabiting marine islands and frequenting open-canopy oak woods, olive groves, orchards, almond plantations, and areas of other well-spaced trees with ample crowns.
Food and Feeding.
Presumably chiefly invertebrates. Fig recorded in late summer. Forages mainly within canopy of trees, also in bushes.
Breeding.
Eggs laid 2nd half of May and Jun. Nest site, in low tree, especially olive or oak, or in bush, height above ground 0.5-3 m. Nest, deep, rounded cup of grass, plant stems, strips of bark, and rootlets, including plant down, lined with fine pieces of grass, root fibres, sparingly with horse-hair, sometimes with plant down. Outside covered with thick layer of spiders' webs.
3-4 eggs, smooth and glossy, very pale pink , lightly soptted and speckled blackish, with some black scrawls. Incubation no longer than 13 days.
Movements.
Migratory, all birds wintering in eastern and southern Africa, from Kenya S to Natal.
Status and Conservation.
Not globally threatened. Recently spread from Bulgaria to Rumania.
Israel.
In Israel subspecies Hippolais olivetorum rare but locally uncommon passage migrant through entire country, also local
over-summering visitor and or breeder in north.

in Israel




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