Dates of Birds First Singing

Species 2002 2003 2004 2005 2006 2007 2008
January
Loxia curvirostra ? 25.3 ?   1.1 -   8.1 -
Parus major 25.1 23.12 17.1   4.1 29.1 10.1 13.1
Parus montanus 16.2 25.2   6.2   4.1 28.1 10.1 17.1
Parus caeruleus 12.2 17.1 17.1 10.1 25.1 10.1 19.1
Parus palustris 16.2 25.2   3.2 10.1 28.1 16.2 22.1
Parus ater ? 16.1   3.2   3.1   9.3 10.1 24.1
Turdus viscivorus   2.2 25.2   3.2   7.2 19.2 24.1 24.1
Parus cristatus 17.2 25.2   6.2   7.2 25.2 14.1 25.1
Regulus regulus   6.3 21.1   6.2   4.2 19.3 15.1 25.1
Troglodytes troglodytes 26.2   9.3 14.3 16.3 25.3   3.2 29.1
February
Sturnus vulgaris ? 25.2   5.3   3.2 24.2 20.2   7.2
Certhia brachydactyla 24.3 16.3 22.4 20.3   9.3 20.2   7.2
Dendrocopos major ? ?   3.2   3.1 19.3   3.2   8.2
Chloris chloris ? 25.2   5.3 15.3 24.2   7.2   8.2
Certhia familiaris 29.3 18.3 31.3 18.3 15.3   6.4   8.2
Columba oenas   5.3 24.2 16.2   5.2 15.3 12.3   8.2
Erithacus rubecula 10.3   2.3 14.3 16.3 22.3 31.1 10.2
Carduelis carduelis ? ? 25.4   7.2 ? 18.2 10.2
Columba palumbus 17.2 23.2   5.3 10.1 19.3   3.2 18.2
Strix aluco   6.3 ? 11.3 24.1   8.2 ? 18.2
Dryocopus martius ? ?   3.2   4.2 15.3   3.2 23.2
Carduelis spinus ? ? 26.3 19.3 ? 16.2 23.2
Fringilla coelebs   1.3 25.2 17.2   7.2 23.2 18.2 23.2
Emberiza citrinella   6.3 28.2   6.2   9.2 19.3 20.2 23.2
Prunella modularis   8.3 28.2 14.3 16.3 10.3   4.3 23.2
Picus viridis ? ? 27.3 ? 20.3   3.3 24.2
March
Turdus merula 26.2   2.3 18.3 20.3   9.3 23.2   2.3
Streptopelia decaocto 28.3   3.3 - - - - -
Lanius excubitor ? ? 17.3 18.3 23.3 ? ?
Sitta europaea ? 28.3 25.4 28.3 ? ? ?
April
Asio otus ? ? ? ? ? ?   8.4
Carduelis flammea ? ? 31.3 15.3 ?   1.4 10.4
Turdus pilaris ? ? 16.3 18.3 26.3 28.3 20.4

With help from Bruno Ghysenberghs, Raphaël Thunus.

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