Search for: [Abstract = "The Working Group on Urban Sparrows is investigating the decline of urban sparrows \"Passer\", in urban and suburban habitats. At the second meeting in 2009 \(De Laet et al 2009\) it was decided to define a standardized census procedure that would enable meaningful comparisons of the House Sparrow \"P. domesticus\" breeding density in urban\/suburban habitats throughout this species` range."]

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