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Channel: Saker Falcon – BirdLife's Globally Threatened Bird Forums
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Archived 2011-2012 topics: Saker Falcon (Falco cherrug): uplist to Endangered?

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Some such new data have been provided in recent publications by Moshkin (2010) and Levin (2011), who present past and present population sizes in the most important range states based on new data sources, particularly for local population trends. In comparison to the figures previously used by BirdLife, key differences in Moshkin’s (2010) estimates include higher estimates of 5,218 pairs in Kazakhstan and 6,500 pairs in Russia in 1990 and a lower estimate of 1,500 pairs in China in 2010. In addition, Levin (2011) gives a new present-day estimate of fewer than 1,000 pairs in Kazakhstan. We discuss these in turn below and consider their significance for the overall rate of decline, the calculation for which can be viewed in the spreadsheet attached. Continue reading

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