Szukana fraza: [Abstract = "A repetition of the counts in 2006 gave similar results. Built\-up areas are also the stronghold of the House Sparrow during winter time, with highest densities recorded in areas with old blocks of flats. Based on the breeding season counts the total number of House Sparrows in Berlin was calculated as 135,000 breeding pairs \(or 16 bp\/10 ha\) in 2001 and 119,000 breeding pairs \(or 13 bp\/10 ha\) in 2006. Both values are surprisingly high in comparison with other large European cities. The difference between 2001 and 2006 is considered as normal fluctuation and not a decline, a view supported by the annual winter counts conducted during that period."]

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