Eight years (1994-2002) of winter- and spring counts of Mute Swans Cygnus olor in the province of Groningen

Richard Ubels, Jeroen Nienhuis, Jan Beekman, Theo Jager, Alex Dijkstra

Research output: Contribution to journalArticlePopular

Translated title of the contributionEight years (1994-2002) of winter- and spring counts of Mute Swans Cygnus olor in the province of Groningen
Original languageDutch
Pages (from-to)33-40
Number of pages8
JournalGrauwe Gors
Volume31
Issue number1
Publication statusPublished - 1-Jan-2003

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