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Artur Goławski

Changes in Numbers of Some Bird Species in the Agricultural Landscape of Eastern Poland

The studies were carried out in eastern Poland, near Siedlce (52°12'N, 22°17'E). The study area covered 788 ha of extensive agricultural landscape. The fieldwork was conducted in 1999-2003 and it comprised 7 counts per season in each year. Tendencies in changes of numbers were followed for 19 bird species. Directional increasing trends in numbers of the Serin (Serinus serinus) and Ortolan Bunting (Emberiza hortulana) were revealed. A statistically significant decreases in numbers considered the Lapwing (Vanellus vanellus), Corn Bunting (Miliaria calandra) and Whinchat (Saxicola rubetra). For the remaining 14 species — e.g. the Red-backed Shrike (Lanius collurio), Linnet (Carduelis cannabina), Goldfinch (C. chloris), Whitethroat (Sylvia communis), Yellowhammer (Emberiza citrinella) — no directional tendencies in numbers of breeding pairs were found. A comparison of tendencies in numbers of analysed species with tendencies observed in western Europe and in western Poland showed that the status of birds in the agricultural landscape of eastern Poland was much better. This has probably been caused by lower intensity of farming practice and more diverse mosaic of habitats.

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Zbigniew Kasprzykowski, Artur Goławski and Cezary Mitrus

Observations of Waterbirds on the Upper Euphrates During Autumn Migration

On 12-15 September 2004 we conducted a count of birds on a 68 km section of the Upper Euphrates, from the Atatürk dam to the town of Halfeti. Altogether 291 individuals from 30 waterbird species were noted, their density was 42.8 indiv. / 10 km. Differentiation in numbers among particular trophic and morpho-ecological groups was significant. Within the trophic groups the phytophagous and ichthyophagous species were the most abundant. The most numerous within the morpho-ecological groups were the swimmers and flight feeders. Despite the lack of appropriate foraging places for some waterbird species, this part of the Euphrates plays an important role for autumn migration in this region. In comparison with other large Western Palearctic rivers, the Upper Euphrates showed low densities of birds and low species similarity.