Aves, p�le ornithologique de Natagora

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Aves, 27/1 | 1990 | 1-14

  Great Crested Grebe (Podiceps cristatus) breeding in Wallonia and Brabant : report on increase in 1987.
Walravens, M., Fouarge, J.-P. & Jacob, J.-P.

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Article summary

A nesting species in Belgium since the beginning of the century, the Great Crested Grebe continues its expansion in Wallonia and in Brabant (Fig; 1) where its populations were counted in 1987 : at least 224 pairs nested and 615 adults were present by mid-May, an increase of 61 % and 58 % since 1981 (Table 1, Fig. 4). The evolution of the population is analysed in terms of annual growth (Table 2) and in function of regional differences. The various types of water bodies occupied and their economic exploitation are noted (Tables 3 and 4), as are some data concering the biology of the species gathered during the census.