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Article
Alain Jortay, AuteurThis work is the result of a 20 years weekly survey of a Little Grebe breeding population (average 2.0 pairs) in 3 sewage ponds sites of Hesbaye (Belgium). Breeding pairs ere allocated to territories; 444 territories were defined and compared in[...]
Article
Alain Jortay, Auteur215 species of birds have been observed at the sedimentation ponds of the Hollogne-sur-Geer sugar factory. The ponds offer a nesting place for several species on the Red List of threatened birds in Wallonia, notably the Black-necked Grebe Podice[...]
