Dates of Birds First Singing

Species 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023
January
Parus major 25.1 23.12 17.1   4.1 29.1 10.1 13.1   9.1 16.1 26.1 11.1 30.1 18.1 25.1 29.1 14.2 26.1 15.1 28.1 20.1 14.1   5.1
Poecile montanus 16.2 25.2   6.2   4.1 28.1 10.1 17.1   1.1   9.1 18.1 11.1 30.1 31.1 18.1 25.1 14.2   6.1 15.2   6.1   9.1   8.1 27.1
Columba oenas   5.3 24.2 16.2   5.2 15.3 12.3   8.2 28.2 18.2 14.2 21.3   6.3   2.2 22.2 10.3 23.4 26.1 16.1   7.3   4.2 24.1 ?
February
Columba palumbus 17.2 23.2   5.3 10.1 19.3   3.2 18.2 28.2 15.3 16.2 16.1   3.4 21.2 28.2 12.3 30.3 27.1 15.2 13.3 22.1   4.3   2.2
Loxia curvirostra ? 25.3 ?   1.1 -   8.1 - 27.7 ? 17.10 11.1   4.3   3.3 ? ? 25.4 ? ? ?   3.2 ? ?
Dryocopus martius ? ?   3.2   4.2 15.3   3.2 23.2 24.2 24.2   8.2 20.2   6.3 10.3 27.2 24.2 24.3 27.1 27.2   5.2 20.2 ?   4.2
Cyanistes caeruleus 12.2 17.1 17.1 10.1 25.1 10.1 19.1 15.1 19.1   7.1 11.1 31.1 30.1   4.2 25.1 17.2 27.1 16.1 30.1 20.1 13.1   7.2
Lophophanes cristatus 17.2 25.2   6.2   7.2 25.2 14.1 25.1 16.3   3.2   7.3 11.1 25.2 30.1 13.3   3.4 21.4 30.1 ? 16.3 21.2 ? 14.2
Turdus viscivorus   2.2 25.2   3.2   7.2 19.2 24.1 24.1 24.2 24.2 26.1 11.1   4.3 18.1 15.2 28.1   3.3 27.1 12.2 22.1   3.2 23.2 14.2
Fringilla coelebs   1.3 25.2 17.2   7.2 23.2 18.2 23.2 25.2 22.2 23.2 22.2 28.2 23.2 10.2   5.3 18.2   4.3 18.2 15.2 18.2   3.3 20.2
Dendrocopos major ? ?   3.2   3.1 19.3   3.2   8.2 15.3   8.2 15.3 15.1   4.3   6.3   9.3   2.5 15.3 11.1 15.2 17.3   2.3 26.2 21.2
Periparus ater ? 16.1   3.2   3.1   9.3 10.1 24.1 15.1   3.2 29.1 11.1 25.2   2.3   3.2 10.3 13.2 16.2 19.1 16.1   7.2 22.3 21.2
Spinus spinus ? ? 26.3 19.3 ? 16.2 23.2 ? 24.2 ? 15.1   5.3 ?   9.3 ? ? ? 17.2 ? 25.2 ? ?
March
Sturnus vulgaris ? 25.2   5.3   3.2 24.2 20.2   7.2 25.2 27.2 11.3   3.3 19.4 ? ? ? ? 27.1 14.2   1.4 15.4 26.2   1.3
Regulus regulus   6.3 21.1   6.2   4.2 19.3 15.1 25.1 11.3 19.1 17.2 11.1   8.3 11.1   6.3 18.3 19.4 30.1 18.2   8.2   3.3   3.3 ?
Carduelis flammea ? ? 31.3 15.3 ?   1.4 10.4 ? 23.3 ? ? ? ? ? ? ? ?   8.3 ? ? ? ?
Turdus merula 26.2   2.3 18.3 20.3   9.3 23.2   2.3 17.3 14.3   3.3   4.3   9.3 19.2 14.2 23.3 14.3   7.3 19.2 12.3 25.3 27.3 11.3
Erithacus rubecula 10.3   2.3 14.3 16.3 22.3 31.1 10.2 15.3   1.3 11.3 25.2 13.3 18.2 15.2 10.3 15.2   7.3 19.2   4.3 22.2 27.2 16.3
[Turdus iliacus]   5.4 13.4 16.3 18.3 22.3 16.2 14.3 11.3 22.3 ? 25.2 ?   5.3 10.3   2.4 19.3   1.4   4.3   2.3 24.3 ? 17.3
Sitta europaea ? 28.3 25.4 28.3 ? ? ? ? 16.3 14.2 22.2 25.4 ? 18.3 13.4 28.3   8.4 17.3 25.2 23.2 28.2 18.3
Lanius excubitor ? ? 17.3 18.3 23.3 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Prunella modularis   8.3 28.2 14.3 16.3 10.3   4.3 23.2   3.3 16.3 14.3   1.3   8.3 23.2 10.3 26.3 17.3 12.3 15.2 10.3 15.3 12.3 27.3
Picus viridis ? ? 27.3 ? 20.3   3.3 24.2   1.3 17.3 20.3 21.3   8.4 ?   8.4 ?   1.4 ? 23.3   7.3 28.3 ? ?
Certhia familiaris 29.3 18.3 31.3 18.3 15.3   6.4   8.2 25.2   5.4   6.4 19.4 19.4 10.3 10.4 18.3 24.4 26.3 18.2   2.3 30.3 ? ?
Troglodytes troglodytes 26.2   9.3 14.3 16.3 25.3   3.2 29.1 14.3 18.3   4.3   1.3   8.3 16.2 28.2 13.3   4.3 24.1 18.2 22.2 23.2 22.2 31.3
April
Pyrrhula pyrrhula ? ? ? ? ? ? ? ? ? 17.2 11.2   2.3   5.3 15.2 23.2 16.2 ? 16.2 18.3 22.2   3.4 ?
Poecile palustris 16.2 25.2   3.2 10.1 28.1 16.2 22.1 15.1 20.2 31.1 23.1 26.2   8.3 11.3 22.3 ? 14.4 ? ? ?   5.4 ?
Asio otus ? ? ? ? ? ?   8.4 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Turdus pilaris ? ? 16.3 18.3 26.3 28.3 20.4 13.3 23.3 16.3 11.3   8.4   9.3   8.3 17.3 12.3 12.3   1.4 16.3 24.3 19.5 13.4
Chloris chloris ? 25.2   5.3 15.3 24.2   7.2   8.2 27.2 21.2   9.2 24.2   6.3   7.3 15.2 25.2 18.2 ? 17.2   4.3 20.2 12.3 14.4
Carduelis carduelis ? ? 25.4   7.2 ? 18.2 10.2 19.3 22.3 10.4 ? 25.4 ?   9.3 18.3 14.4 ? 20.2   4.4 18.4 ? ?
Strix aluco   6.3 ? 11.3 24.1   8.2 ? 18.2   9.3 24.2 22.4 ? ? ? ? ? ? ? ? ? ? ? ?
Streptopelia decaocto 28.3   3.3 - - - - - - - - - - 13.3 24.4 - 19.3 -   5.5 ? 26.4 ? ?
May
Certhia brachydactyla 24.3 16.3 22.4 20.3   9.3 20.2   7.2 15.3 17.3 16.3 22.2   7.3   6.3 28.4   2.4 30.3   7.4 21.2 15.2 21.2 27.2 12.5
Emberiza citrinella   6.3 28.2   6.2   9.2 19.3 20.2 23.2 13.3   2.3   3.3   6.3   8.3 12.3   8.3 20.4   5.5 10.3 21.4 20.3 14.5 ? ?

With help from Bruno Ghysenberghs, Raphaël Thunus.

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