Dates of First Passing Spring Migrants


Species 2002 2003 2004 2005 2006 2007 2008 2009
January
Vanellus vanellus ?   2.3 29.2 ? 31.1   9.2 23.2   6.1
February
Alauda arvensis ?   2.3   6.2   7.2 10.3 12.2   7.2
Grus grus 17.2 19.2   8.3   2.3 18.2 15.2 24.2
Phalacrocorax carbo   4.4 ?   3.4 ?   6.4 25.2 ?
March
Anser anser ? ? ? 16.3 ? 13.3 ?
Circus cyaneus ? 18.3 ? ? ? ? ?
Lullula arborea ? ? ? ? 23.3 ? ?
Falco columbarius ? ? 14.3 24.3 ? ? ?
Ciconia ciconia 24.3 ? ? ? ? ? ?
Oenanthe oenanthe 28.4 15.4   2.5 28.4   1.5 14.4 30.3
April
Tringa ochropus ?   7.4 23.4   6.4 19.4 24.4   6.4
Motacilla flava 21.4 13.4 23.4   1.5 ? 12.4 17.4
Turdus torquatus ? 18.4 13.4 26.4   7.4   9.4 21.4
Saxicola rubetra ? 17.4   2.5 29.4 12.5 30.4 27.4
May
Ficedula hypoleuca ? 16.4 17.4 ? ? ?   4.5
Pandion haliaetus ?   8.4 21.4   6.5 ? ? ?

With help from Gregory Bia, Annie Dubois, Bruno Ghysenberghs, Raphaël Thunus.


Translations

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