Kitowski, I. (2011): The breeding population of the rook Corvus frugilegus in Chełm (eastern Poland) a comparison of the surveys of 1991 and 2011. Teka Komisji Ochrony I Kształtowania Środowiska Przyrodniczego 8: 56-62. | Language: English | Type: Normal Paper | Countries where study took place: Poland | Species: Corvus, -Corvus frugilegus | Species Full Names: Corvus Linnaeus, 1758Corvus frugilegus Linnaeus, 1758 | Themes: Geographical distribution, - Survey of Population size | Full document |
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