| .תיחרזמ תינק (444 | ||||||||||
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םינעדמ רפסמ לבא .תיפוריאה תינקה לש ןימ תתכ התוא םיגווסמה שי :תיחרזמ תינק | ||||||||||
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Subspecies and Distribution.
Acrocephalus orientalis C and E-S Siberia, C and E Asia, including Mongolia, China, Korea and Japan. Winters SE and SC Asia including Orient and India. | ||||||||||
Descriptive notes.Eastern Great Reed-Warbler is treated as a subspecies of Great Reed Warbler, although some scientists, who have studied the taxonomy of large Palearctioc Acrocephalus, believe that considerable morphological differences warrant is full separation as a full species.Look like Great Reed Warbler, but differs from in being smaller, with rounded wings, and in having more olive-grey tinge to upperparts, and whiter underparts. Has whiter, longer and sharper supercilium, as a rule, most fresh birds have broader and whiter rectrix-tips. Habitat.Occurs mainly in lowland, even in some zones in USSR on mountain lakes up to 2000 m.Mostly concentrated in aquatic vegetation emerging from shallow standing water, fresh or brackish, especially in strong, tall, and dense reeds fringing banks or swamps, or islanded above the shallow bottoms of lakes or sluggish rivers. Food and FeedingMainly insects, with some spiders, snails, and small vertebrates, some fruits and berries outside breeding season. Feeding techniques not as well studied as in other Acrocephalus. Composition of diet and visual observations suggest that most prey caught in short leaps as bird moves through vegetation, searching leaves and stems carefully. Mobile, flying prey caught by usinglong jumps or leaps, or flycatching techniques, akin to leap-catching and fly-catching.Breeding.No further information.Movements.Migrates south to winter in N-E India, Burma, and Andema Islands, and throughout S-E Asia. Occasionally recorded New Guinea and N Australia.Status and ConservationNot globally threatened.Israel.In Israel subspecies Acrocephalus orientalis straggler, ringed at Eilat |
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