| .תובג-תבוהצ תיוולע (470 | ||||||||||
| ||||||||||
|
םינוילעה הפוג יקלח .תטלוב הרוצב הליעפו תינניח ,הריהב ,ידמל הנטק :תובג-תבוהצ תיוולע | ||||||||||
|
Subspecies and Distribution.
P. i. inornatus Siberia from nothern Urals E to Sea of Okhotsk, S to northern Sayan mountains. | ||||||||||
Descriptive notes.10-11 cm, 5.5-6 g, wingspan 15-20 cm. Rather small, light, graceful, and strikingly active Phylloscopus , with general character and behaviour at times recalling Regulus.Plumage essentially pale olive above and yellowish-white below, with long pale supercilium, two wing-bars, and bright tertial edges all with adjacent dark areas which create striped pattern on upperparts. Sexes similar, no seasonal variation. Habitat.Breeds in central and east Palearctic over somewhat more northerly temperate and boreal range than Green Warbler, in contrast with it has not spread as far into west Palearctic. It appears, however, in strength of preference for open growth of broad-leaved rather than coniferous trees and shrubs. Limits of breeding range also suggest greater attachment to warm lowland, continental climate in northern areas, where common in belts of low birch, poplar, and willow, frequenting treetops. Often occurs in riverain forest.In W Himalayas, optimum breeding zone is 2500-3000 m. Food and FeedingInsects and a few other invertebrates. Highly active when foraging, impression being enhanced by constant fluttering and wing-flicking which perhaps serve to disturb prey. Picks or snatches items from twigs and leaves of trees and bushes, sometimes after short flight. Often pursues insects in agile flight, during and twisting.Breeding.Jun-Jul in USSR. Nest site, on ground, in or against tussock, mound, windfall debris, or among tree roots.Nest, domed structure with side entrance, of dry grasses, moss, rotten wood, plant fibre, and rootlets, lined with finer material. 4-7 eggs, sub-elliptical, smoot and glossy, white, finely marked with red-brown, purple-brown, and pale purple-grey spots and speckles, usually heavier at broad end. Incubation 11-14 days, by female. Movements.All populations migratory. Siberian race, nominate, winters from C Nepal and Bangladesh E to S-E China, Hainan, and Taiwan, S to Malay peninsula.Race P. i. mandellii, migrates through southern Tibet and S-W China, apparently chiefly Sep-Apr. Status and ConservationNot globally threatened. Locally abundant, no changes reported.Israel.In Israel subspecies P. i. inoranatus accidental or extremely rare migrant in most parts of the county, though rare but regular in autumn in Eilat and Arava Valley. |
| |||||||||
| HOME | NEXT | |||||||||
