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<dc:title xml:lang="en"><![CDATA[Acta Ornithologica, vol. 38, no. 1]]></dc:title>
<dc:title xml:lang="en"><![CDATA[Porównanie lęgów sroki z zeszłorocznych i z nowych gniazd w Sofii]]></dc:title>
<dc:title xml:lang="en"><![CDATA[Nest reusing in magpie]]></dc:title>
<dc:title xml:lang="en"><![CDATA[Re-use of old nests versus the construction of new ones in the magpie Pica pica in the city of Sofia (Bulgaria)]]></dc:title>
<dc:title xml:lang="pl"><![CDATA[Acta Ornithologica, vol. 38, no. 1]]></dc:title>
<dc:title xml:lang="pl"><![CDATA[Porównanie lęgów sroki z zeszłorocznych i z nowych gniazd w Sofii]]></dc:title>
<dc:title xml:lang="pl"><![CDATA[Nest reusing in magpie]]></dc:title>
<dc:title xml:lang="pl"><![CDATA[Re-use of old nests versus the construction of new ones in the magpie Pica pica in the city of Sofia (Bulgaria)]]></dc:title>
<dc:creator><![CDATA[Antonov, Anton (1977–2012)]]></dc:creator>
<dc:creator><![CDATA[Atanasova, Dimitrinka]]></dc:creator>
<dc:subject xml:lang="en"><![CDATA[Magpie]]></dc:subject>
<dc:subject xml:lang="en"><![CDATA[birds]]></dc:subject>
<dc:subject xml:lang="en"><![CDATA[Bulgaria]]></dc:subject>
<dc:subject xml:lang="en"><![CDATA[Sofia]]></dc:subject>
<dc:subject xml:lang="en"><![CDATA[nest reuse]]></dc:subject>
<dc:subject xml:lang="en"><![CDATA[breeding success]]></dc:subject>
<dc:subject xml:lang="en"><![CDATA[Pica pica]]></dc:subject>
<dc:subject xml:lang="en"><![CDATA[Corvidae]]></dc:subject>
<dc:subject xml:lang="en"><![CDATA[Aves]]></dc:subject>
<dc:subject xml:lang="en"><![CDATA[1999-2000]]></dc:subject>
<dc:subject xml:lang="pl"><![CDATA[Sroka -- Bułgaria -- Sofia [KABA]]]></dc:subject>
<dc:subject xml:lang="pl"><![CDATA[tereny peryferyjne]]></dc:subject>
<dc:subject xml:lang="pl"><![CDATA[tereny pozamiejskie]]></dc:subject>
<dc:subject xml:lang="pl"><![CDATA[strategie lęgowe]]></dc:subject>
<dc:subject xml:lang="pl"><![CDATA[sukces lęgowy]]></dc:subject>
<dc:subject xml:lang="pl"><![CDATA[krukowate]]></dc:subject>
<dc:subject xml:lang="pl"><![CDATA[ptaki]]></dc:subject>
<dc:subject xml:lang="pl"><![CDATA[Pica pica]]></dc:subject>
<dc:subject xml:lang="pl"><![CDATA[Corvidae]]></dc:subject>
<dc:subject xml:lang="pl"><![CDATA[Aves]]></dc:subject>
<dc:subject xml:lang="pl"><![CDATA[1999-2000]]></dc:subject>
<dc:description xml:lang="en"><![CDATA[Nest re-use in a high density population of Magpies in the City of Sofia and its vicinity was studied during 1999-2000. The rate of nest re-use was significantly higher within the urban area (17%) as compared to the immediate rural surroundings within a distance of 1 km (7%). Re-used nests were on average higher above the ground than newly-built nests. The nest re-use rate was not related to breeding density, abundance or the mean height of available trees. Magpies re-using their old nests laid eggs significantly earlier compared to those building new nests. However, nest re-use did not confer other benefits on the reproductive output since clutch size, hatching and fledging success did not differ significantly between the two nesting strategies.]]></dc:description>
<dc:description xml:lang="en"><![CDATA[Bibliogr. p. 4]]></dc:description>
<dc:description xml:lang="en"><![CDATA[P. [1]-4 ; 27 cm]]></dc:description>
<dc:description xml:lang="en"><![CDATA[Abstract in Polish. Taxa in Latin]]></dc:description>
<dc:description xml:lang="pl"><![CDATA[Nest re-use in a high density population of Magpies in the City of Sofia and its vicinity was studied during 1999-2000. The rate of nest re-use was significantly higher within the urban area (17%) as compared to the immediate rural surroundings within a distance of 1 km (7%). Re-used nests were on average higher above the ground than newly-built nests. The nest re-use rate was not related to breeding density, abundance or the mean height of available trees. Magpies re-using their old nests laid eggs significantly earlier compared to those building new nests. However, nest re-use did not confer other benefits on the reproductive output since clutch size, hatching and fledging success did not differ significantly between the two nesting strategies.]]></dc:description>
<dc:description xml:lang="pl"><![CDATA[Bibliogr. s. 4]]></dc:description>
<dc:description xml:lang="pl"><![CDATA[S. [1]-4 ; 27 cm]]></dc:description>
<dc:description xml:lang="pl"><![CDATA[Streszcz. pol. Nazwy taksonów także w jęz. łac.]]></dc:description>
<dc:publisher><![CDATA[Museum & Institute of Zoology]]></dc:publisher>
<dc:contributor><![CDATA[Polska Akademia Nauk. Muzeum i Instytut Zoologii]]></dc:contributor>
<dc:date><![CDATA[2003]]></dc:date>
<dc:type xml:lang="en"><![CDATA[Text]]></dc:type>
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<dc:relation><![CDATA[Acta Ornithologica]]></dc:relation>
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