Aves, p�le ornithologique de Natagora

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Aves, 50/1 | 2013 | 9-19

  The “opportunistic” observation database of Aves: 50 years of field recording
Jean-Yves Paquet, Thierry Kinet, Marc De Sloover, Antoine Derouaux & Jean-Paul Jacob

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Article summary

On the occasion of the 50th anniversary of Aves, this article reviews the evolution of the “opportunistic” observation database of the association. This database organizes data from daily bird records of hundreds of birdwatchers, collected outside survey programs conducted with a specific protocol. More than 1.8 million data have so been accumulated, first from monthly reports sent by the observers, then, since 2008, through specialized data portals, the most famous being “observations.be”. Part of the pre-1989 data are at this moment only available in the form of handwritten files, currently being digitized. The data transmitted through online data portals are not only more numerous (about 300,000 per year) than during the pre-portal period, but also different in many ways which are discussed in the article. Some potential uses of this database are also reviewed.


  • Jean-Yves Paquet, Thierry Kinet, Marc De Sloover, Antoine Derouaux & Jean-Paul Jacob
    Centrale Ornithologique Aves
    Rue Fusch 3 – 4000 Liège

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Bécassine des marais (Gallinago gallinago), Bergeronnette grise (Motacilla alba), Bruant jaune (Emberiza citrinella), Buse variable (Buteo buteo), Canard colvert (Anas platyrhynchos), Canard souchet (Anas clypeata), Cassenoix moucheté (Nucifraga caryocatactes), Chevalier cul-blanc (Tringa ochropus), Chevalier guignette (Actitis hypoleucos), Corneille noire (Corvus corone), Épervier d'Europe (Accipiter nisus), Faucon crécerelle (Falco tinnunculus), Fauvette à tête noire (Sylvia atricapilla), Foulque macroule (Fulica atra), Fuligule milouin (Aythya ferina), Fuligule morillon (Aythya fuligula), Gallinule poule-d'eau (Gallinula chloropus), Grand Cormoran (Phalacrocorax carbo), Grande Aigrette (Casmerodius albus), Grèbe castagneux (Tachybaptus ruficollis), Grèbe huppé (Podiceps cristatus), Grive litorne (Turdus pilaris), Grue cendrée (Grus grus), Héron cendré (Ardea cinerea), Hirondelle rustique (Hirundo rustica), Hypolaïs ictérine (Hippolais icterina), Jaseur boréal (Bombycilla garrulus), Martin-pêcheur d'Europe (Alcedo atthis), Merle à plastron (Turdus torquatus), Merle noir (Turdus merula), Mésange à longue queue (Aegithalos caudatus), Mésange bleue (Cyanistes caeruleus), Mésange charbonnière (Parus major), Milan noir (Milvus migrans), Mouette rieuse (Chroicocephalus ridibundus), Pie-grièche écorcheur (Lanius collurio), Pigeon ramier (Columba palumbus), Pinson des arbres (Fringilla coelebs), Pipit rousseline (Anthus campestris), Pipit spioncelle (Anthus spinoletta), Pouillot véloce (Phylloscopus collybita), Rougegorge familier (Erithacus rubecula), Sarcelle d'hiver (Anas crecca), Serin cini (Serinus serinus), Vanneau huppé (Vanellus vanellus)